General Biology 1 Quarter 3 Exam

1. LAGUNA UNIVERSITY
Senior High School
Laguna Sports Complex, Brgy. Bubukal, Santa Cruz, Laguna
Tel No. (049) 501-4360
First Quarterly Examination in General Biology 2
Name: Date:
Strand / Section: Teacher I:Alvin A. Pabores
Instructions:
 STRICTLY follow the direction indicated in in each set of questions.
 DO NOT submit this test paper without complete answers on your answer sheet.
I. MULTIPLE CHOICE: Choose the BEST letter of the correct answer.
1. The Father of Genetics select the garden pea plant for three purposes, Which among the following
are included?
I. the morphology of pea flowers
II. the presence of distinctive traits
III. the expression of dominant alleles
IV. the rapid reproduction cycle
V. the ability to reproduce multiple offsprings
A. I, II, and IV D. I, II, III, and IV
B. I, III, and V E. I, II, and III
C. I, III, IV, and V
2. When a true breeding pea plant that has yellow seeds is pollinated by a plant that has green
seeds, all the F1 plants have yellow seeds. This means that the allele for yellow is…
A. heterozygous D. dominant
B. recessive E. lethal
C. homozygous
3. Which of the following statements are true about dihybrid?
I. It is homozygous for two traits.
II. It is heterozygous for two traits.
III. It is produced in a cross between two pure parents differing in two pairs of
contrasting characters.
IV. It is produced in a cross between two pure parents differing in one pair of
contrasting characters.
A. I and II D. II and III
B. III and IV E. I and IV
C. II and IV
4. If a tall pea plant having red colored flowers are crossed, they produce four types of plants in the
ratio of 9 : 3 : 3 : 1. The genotype of the parents are (R red flowered ; T tall) is …
A. RRTT x RRTT D. RrTT x RrTT
B. RrTt x RrTt E. RRTt x RRTt
C. RRTT x rrtt
5. F2 generation is produced by…
A. crossing F1 progeny with one of the parents
B. selfing the heterozygous progeny.
C. selfing the parents.
D. a cross between recessive parents.
E. offspring from parental generation.
6. Law of independent assortment is applicable for the traits which are located on…
A. different chromosomes D. same chromosome
B. homologous. E. heterozygous.
C. Genotypes.
7. Which of the following term indicates a pair of dissimilar alleles?
A. homozygous D. heterozygous
B. genotypes C. phenotypes
C. loci
8. Mendel obtained true breeding plant for dominant character by…
A. continuous cross pollination
B. self pollination for many generations
C. by making cross between hybrid and pure plant

2. D. alternate self and cross pollination
E. mating F1 and F2 generations
9. When dominant AA and recessive aa is crossed, the percentage ratio of the hybrid showing
the parental genotypes is
A. 0% D. 25%
B. 50% E. 75%
C. 12.5%
10. 190 grains of golden rice from single plant when sown produce 140 tall and 50 dwarf plants. The
genotypes of these offsprings may be…
A. TT, tt D. TT, Tt
B. Tt, Tt E. TT, Tt, tt
C. Tt, tt
11. A plant is heterozygous for tallness (Tt). The possibility of ‘t’ gamete fertilizing either T or ‘t’ is…
A. 1/2 D. 1/4
B. 1/8 E. 1/16
C. 1/32
12. Which of the following cross produces tall and dwarf in equal proportion?
A. TT x Tt D. Tt x TT
B. Tt x Tt E. Tt x tt
C. TT x tt
13. Which of the following is dominant character according to Mendel?
A. dwarf plant and yellow fruit
B. terminal fruit and wrinkled seed
C. white flower and yellow seed
D. green colored pod and rounded seed
E. axial flower position and short plant height
14. In a monohybrid cross, when F1 is crossed with homozygous dominant parent then which type
of offsprings will be obtained?
A. dominant: recessive (3 : 1) D. only recessive
B. dominant : recessive (1 : 1) E. no recessive
C. dominant: recessive (1 : 3)
15. When Mendel crossed true breeding white- flowered strain of peas with a true breeding purple-
flowered strain, individuals in the F2 represented…
A. white-flowered plants
B. purple-flowered plants
C. purple-flowered and white-flowered plants in the ratio 3 : 1
D. purple and white-flowered individuals in the ratio 1 : 1
E. white-flowered plants with purple spots
16. Genetically identical progeny is produced when the individual…
A. performs cross fertilization. D. produces identical gametes.
B. practices inbreeding without meiosis. E. undergoes mutation
C. mates in F2 generation
17. The percentage of ‘yr’ gametes produced by a YyRr parents will be…
A. 75 D. 25
B. 50 E. 12.5
C. 100
18. Figuring out the height of Kyle Kuzma, a basketball player from Lakers, will give information
concerning his …
A. genotype. D. phenotype.
B. recessive alleles. E. heterozygous alleles.
C. homozygous alleles.
19. If a heterozygous tall plant is crossed with a homozygous short plant, how many percent of the
offspring are heterozygous tall?
A. 0% D. 25%
B. 50% E. 75%
C. 100%
20. The F1 generation differed from the F2 in Mendel's experiments in that …
A. none of the F1 showed the dominant phenotype, but one-half of the F2 did
B. all of the F1 showed the dominant phenotype, and all of the F2 showed the recessive
phenotype
C. all of the F1 showed the dominant phenotype, whereas only one-half of the F2 did
D. one-half of the F1 showed the dominant phenotype, and three-quarters of the F2 did
E. all of the F1 showed the dominant phenotype, but only three-quarters of the F2 did

3. 21. In a certain plant, the alleles A, B, and C are completely dominant to the alleles a, b, and c. A
plant with the genotype AABbcc will have the same phenotype as a plant with the genotype…
A. Aabbcc D. AaBBcc
B. AABBCc E. aabbcc
C. aaBbCC
22. In Mendel's monohybrid cross of purple-flowered and white-flowered peas, all members of the F1
generation had the __________ phenotype because their genotype was __________ at the
flower-color locus.
A. purple-flowered ... heterozygous D. white-flowered ... heterozygous
B. purple-flowered ... homozygous E. recessive white-flowered ... homozygous
C. recessive purple-flowered ... homozygous dominant
23. A woman with type O blood is expecting a child. Her husband is type A. Both the woman's father
and her husband's father had type B blood. What is the probability that the child will have type O
blood?
A. 100% D. 75%
B. 50% E. 25%
C. 0%
24. Which choice below describes the expression of Fragile X Syndrome disease in humans at the
biochemical level?
A. codominant D. dominant
B. recessive E. polygenic
C. incompletely dominant
25. What is the probability that a human male will inherit an X-linked recessive allele from his father?
A. 0% D. 25%
B. 50% E. 75%
C. 100%
26. For an X-linked trait, it is the contribution of the __________ that determines whether a son will
display the trait.
A. father D. paternal grandfather
B. paternal grandmother E. mother
C. neighbor
27. If a woman is heterozygous for a recessive sex-linked allele and her husband has the dominant
allele, which one of the following is true about the probabilities for their children?
A. Half of their sons will show the recessive trait.
B. None of their sons will show the recessive trait.
C. All of their sons will show the recessive trait.
D. All of their daughters will be heterozygous.
E. None of their children show the recessive traits
28. Hemophilia is an X-linked disorder. The daughter of a father with hemophilia and a carrier mother
has a __________ probability of having hemophilia.
A. 0% D. 25
B. 50% E. 75%
C. 100%
29. X-linked genes differ from Y-linked genes in which of the following ways?
A. Children have equal probabilities in inheriting a recessive allele of an X-linked gene from their
mother, but only sons can inherit rare Y-linked genetic disorders from their father.
B. Only X-linked genes are technically sex-linked because Y-linked genes affect characteristics
unrelated to sex.
C. Sons and daughters can inherit alleles of X-linked genes from fathers proportionally but only
sons inherit alleles of Y-linked genes from their fathers.
D. Though most X-linked genes determine sex, Y-linked genes control for characters unrelated
to sex.
E. Genes on the X chromosome are expressed only in females, and genes on the Y
chromosome are expressed only in males.
30. Kim Soo-hyun marries a Filipina and both do not show any apparent traits of inherited disease.
Five sons and three daughters are born, and four of their sons suffer from a disease and
fortunately none of the daughters is affected. The mode of inheritance for the disease is…
A. sex-linked recessive D. sex-linked dominant
B. autosomal dominant E. autosomal dominant
C. mitochondrial inheritance
31. Traits such as breast formation in females or beard in males are referred to as..
A. sex-linked recessive D. sex-linked dominant
B. autosomal dominant E. autosomal dominant
C. mitochondrial inheritance

4. 32. Which genetic disorder results in abnormally shaped blood cells?
A. Sickle cell anemia D. Huntington disease
B. Haemophilia E. Hypertrichosis
C. Klinefelter syndrome
33. Why do sex-linked traits appear more often in males than in females?
A. A recessive allele on the X chromosome will always produce the trait in a male.
B. Any allele on the Y chromosome will be codominant with the matching allele on the X
chromosome.
C. All alleles on the Y chromosome are recessive.
D. All alleles on the X chromosome are dominant.
E. Any allele on the X chromosome will be codominant with the matching allele on the Y
chromosome.
34. If the father has hemophilia and the mother does not have the trait, none of the sons will have
hemophilia but daughters will…
A. carry the trait as they inherit an X chromosome from the father.
B. express the disease as they inherit an X chromosome from the father.
C. carry the trait as they inherit an X chromosome from the mother.
D. express the disease as they inherit an X chromosome from the mother.
E. express the disease as they inherit an Y chromosome from the father.
35. Phenotypic ratio in plant Snapdragon in F2 is …
A. 1 : 1 D. 2 :1
B. 3 : 1 E. 1 : 2 : 1
C. 1 : 1 : 1 :1
36. Which of the following matings CANNOT produce a child with blood type O? The letters refer to
blood types (phenotypes).
A. A × A D. O × AB
B. O × O E. A × B
C. B × B
37. Color in squash is controlled by epistatic interactions in which color is recessive to no color. At the
first locus, white squash (W) is dominant to colored squash (w). At the second locus, yellow (Y)
is dominant to green (y). What is the phenotype of a squash with the genotype wwYy?
A. green with yellow stripes D. green
B. white
C. white with yellow stripes
38. Flower color in snapdragons is an example of incomplete dominance. When a red-flowered plant
is crossed with a white-flowered plant, the F1 generation has pink flowers. If a pink-flowered
plant is crossed with another pink-flowered plant, the progeny plants will be __________.
A. 25% red, 50% pink, and 25% D. white 50% pink and 50% red
B. 100% pink E. 100% red
C. 25% white and 75% red
39. If each parent can produce 100 genetically distinct gametes, how many genetically distinct
offspring can two parents produce?
A. 100 D. 200
B. 10 E. 10,000
C. 1,000,000
40. In cattles, when red one is crossed with white, an intermediate roan coloured offspring is formed
in F1 generation. When selfing of F1 generation was carried, the result obtained was______.
A. 2 Red, 1 Roan, 1 White D. 1 Red, 2 Roan, 1 White
B. 1 Red, 2 Roan, 2 White E. 1 Red, 1 Roan, 1 White
C. 2 Roan, 2 White
41. Co-dominance differs from incomplete dominance as in co-dominance…
A. the hybrid is intermediate.
B. both the genes are expressed equally .
C. dominant gene is expressed in F1 generation
D. genotypic ratio is 1 : 1
E. presence of lethal genes make the offspring die
42. What is the first step in exchanging of DNA molecules occur in homologous recombination?
A. heteroduplex migration exchange the DNA molecules
B. joining the homologous strand
C. DNA molecules line up
D. vertical and horizontal cut of heteroduplex region
E. separation of DNA strands creates a ‘Y’ shape

5. 43. In order to perform the site-specific recombination, what should be the similarity of λ DNA and the
host organism?
A. presence of integrase
B. able to undergo holliday junctions
C. similar sequence of codons
D. able to replicate via DNA recombination
E. extension of the replicated DNA
44. All known organisms translate genetic information to produce protein molecules via the same
genetic code. This finding strongly supports the hypothesis that __________.
A. there's only one possible way to encode information in a macromolecule
B. all macromolecules form when lightning struck an oxygen-free atmosphere
C. the genetic code will never be broken
D. all organisms are descended from a single common ancestor
E. the chemical composition of all organism are similar
45. Human vestigial organs are __________.
A. evidence for Lamarck's theory of use and disuse
B. homologies that can only be observed in embryos
C. one piece of evidence that does not support the theory of evolution
D. examples of anatomical imperfections such as the appendix
E. structures that were useful to our ancestors
46. Which of the following is an example of convergent evolution?
A. Blind cave fish possess remnants of eye structures under their scales.
B. Cats and bats have similar skeletal configurations in their forelimbs.
C. Human embryos and fish embryos both have pharyngeal pouches.
D. Both cone-bearing plants and flowering plants produce seeds.
E. Dolphins and sharks have a similar streamlined body shape.
47. When they were first sold, aerosol insecticides were highly effective in killing flies and
mosquitoes. Now, several decades later, a much smaller proportion of these insects die when
sprayed. The reason fewer insects die when they are sprayed is that __________.
A. mosquitoes are deliberately adapting themselves to this man-made change in the
environment
B. the original spraying has caused a permanent mutation, giving the insects genetic resistance
to the spray
C. mosquitoes that survive spraying develop an immunity to the insecticide
D. many mosquitoes today are desc endants of mosquitoes with insecticide-resistant
characteristics
E. the chemical positions of insecticides is not strong enough to kill flies and mosquitoes
48. According to the theory of evolution, anatomical and molecular homologies should __________.
A. yield very different hierarchical patterns
B. be understood to have come about by chance alone
C. link all of the species currently present on Earth
D. produce similar patterns of evolutionary relatedness
E. be completely independent of each other
49. The breeding of plants and animals for particular traits by humans is called __________.
A. homology D. sexual recombination
B. paleontology E. artificial selection
C. natural selection
50. In Darwin's view of descent with modification __________.
A. an organism's traits only affect its own survival and its fertility.
B. individuals can evolve due to the changes in the food supply and habitat.
C. natural selection only operates when an organism needs to evolve
D. environmental changes have no effect on the organisms living in that environment
E. natural selection can improve the match between an organism and its environment
51. Which of the following is a true statement about Charles Darwin?
A. He based all his theory on the inheritance of acquired characteristics.
B. He worked out the principles of population genetics.
C. He was the first to discover that living things can change, or evolve.
D. He proposed natural selection as the mechanism of evolution.
E. He was the first to conclude that Earth is billions of years old.
52. Lyell's principle of uniformitarianism __________.
A. strongly influenced Darwin's view of how living organisms could change over time
B. was compatible with the idea of Earth being only a few thousand years old
C. was rejected by Darwin in favor of catastrophism
D. was similar to Lamarck's theory of inheritance of acquired characteristics
E. states that Earth processes are very different from those that operated in the past

6. 53. The modern idea of extinction as a common occurrence in Earth's history was first proposed in
the early 19th century writings of __________.
A. Cuvier D. Lyell
B. Aristotle E. Lamarck
C. Wallace
54. Carolus Linnaeus is considered to be the founder of __________, and he __________.
A. the binomial classification system ... thought that resemblances among different species
B. uniformitarianism ... believed the same geologic forces are operating today that occurred in
the past
C. genetics ... described the mechanism for descent with modification
D. paleontology ... believed in catastrophism
E. evolution ... first proposed that acquired characteristics are inherited
55. Three species of frogs, Rana pipiens, Rana clamitans, and Rana sylvatica, all mate in the same
ponds, but they pair off correctly because they have different calls. This is a specific example of
a __________ barrier, called __________.
A. postzygotic ... hybrid infertility
B. prezygotic ... temporal isolation
C. prezygotic ... behavioral isolation
D. prezygotic ... gametic isolation
E. postzygotic ... mechanical isolation
56. Two species of water lilies in the same pond do not interbreed because one blooms at night and
the other during the day. The reproductive barrier between them is an example of __________.
A. ecological isolation D. temporal isolation
B. hybrid breakdown E. mechanical isolation
C. gametic isolation
57. Which of the following is an example of a postzygotic reproductive barrier?
A. Two fruit flies of different species produce sterile offspring.
B. The sperm of a marine worm can only fertilize eggs of the same species.
C. One species of flower grows in forested areas, another in meadows.
D. Two pheasant species perform different courtship dances.
E. One species of frog mates in April, but another mates in May.
58. There are two groups of pine trees that appear to be very similar phenotypically and
genotypically. However, one releases pollen in January, when the female structures of that
group are receptive, and one in March. What kind of reproductive barrier is this?
A. a geographic barrier D. mechanical isolation
B. hybrid inviability E. temporal isolation
C. gametic isolation
59. Which of the following conditions is necessary for speciation to occur?
A. interbreeding populations D. adaptive radiation
B. mass extinction E. sympatric speciation
C. reproductive isolation
60. In which of the following pairs of populations is allopatric speciation most likely to occur?
A. bacteria in a hospital and bacteria in a nursery
B. whale populations of the same species located on opposite sides of the Atlantic Ocean
C. fruit flies on bananas and fruit flies on oranges
D. mountain lions in the canyons of Wyoming and in the nearby canyons of Utah
E. pine trees in Alaska and pine trees on the island of Madagascar
61. The early atmosphere on Earth is thought to have lacked which of the following gases?
A. water D. carbon dioxide
B. methane E. oxygen
C. nitrogen
62. The binomial system assigns to each organism a unique name that describes its __________.
A. family and species D. body plan and habitat
B. evolutionary history E. genus and species
C. order and family
63. The two-part format of the scientific name, referred to as binomial ensures that the…
I. named is understandable regardless of language barriers among scientists.
II. species is assigned a unique name base on the last two parts of taxonomic rank.
III. biologist can easily specify the closest relatives of any species.
IV. similarities of chemical compositions of organism within the population.
V. habitat and mode of reproduction of the organism will reflect on its name.
A. I, II, and III D. I, II, and IV
B. II, IV, and V E. II, III, and IV
C. I, III, and IV

7. 64. What is the first thing that must happen in order for speciation to occur?
A. A hybridization of population must be established to .
B. Gene flow between populations must be interrupted.
C. One of the populations must undergo post zygotic speciation.
D. An event must cause geographic separation of two populations.
E. The populations must become reproductively isolated.
65. The Galápagos finches collected by Darwin are thought to have descended from a very small
parent population. Different species of finches that are confined to only one or two islands most
likely arose by __________.
A. sympatric speciation D. peripatric speciation
B. allopatric speciation E. gene flow
C. hybridization
66. Species X and species Y are in the same phylum. Species X and species Z, but not species Y,
are in the same order. From this information you can conclude that __________.
A. species X and species Y are in the same family
B. all three species are not members of the same phylum
C. all three species are members of the same genus
D. species Z could be in the same class as species X and Y
E. species Y and species Z share a less recent ancestor than do species X and Y
67. What does a branch point in a phylogenetic tree represent?
A. A branch point represents a split between two phyla from a single common ancestor.
B. A branch point represents a point at which two evolutionary lineages split from a common
ancestor.
C. A branch point represents a place where one species branches off from another.
D. A branch point represents the time at which two evolutionary lineages split from a common
ancestor.
E. A branch point represents a gene duplication that happen within the population.
68. A phylogenetic tree of bird families constructed by cladistic analysis would be a hypothesis about
which of the following?
A. relative ages of living species of birds
B. analogous structures shared by various species
C. evolutionary relationships among bird families
D. families that look most alike
E. characteristics shared by all bird families
69. Many researchers who study the kingdom Protista argue that all of these organisms should NOT
be placed in the same kingdom, because these organisms could not have evolved from a
common ancestor. In other words, they argue that the kingdom Protista is __________.
A. homophyletic D. monophyletic
B. paraphyletic E. polyphyletic
C. heterophyletic
70. Bees may pick up the pollen of one species on a certain place on their bodies; if this area does
not come into contact with the receptive structures of the flowers of another plant species, the
pollen is not transferred. What kind of pre-zygotic isolation shown from the scenario?
A. mechanical isolation D. temporal isolation
B. behavioral isolation E. habitat isolation
C. gametic isolation
71. Jewish and Muslim men have been circumcised for many generations, yet this practice has had
no effect on the penile foreskin of their offspring. This observation is inconsistent with evolution
as envisioned by…
A. Lamarck D. Darwin
B. Wallace E. Lyell
C. Hutton
72. Changes in just a few genes that regulate___________ are often responsible for the evolution of
new features and form in a population.
A. fossil formation D. vestigial structures
B. development E. biogeography
C. adaptation
73. The Hardy–Weinberg principle may be applicable if …
A. population size is small and reproduction is gradual
B. migration occurs only at the beginning of the breeding season
C. mutations occur at a constant rate from the beginning
D. matings occur exclusively between individuals of the same genotype
E. natural selection does not occur with the population

8. 74. The latter part of the Paleozoic Era came with the massive extinction in the history of species on
Earth surface, wipe away the 95% of marine life and about 70% of species on land. What is the
reason of extinction?
A. climate change D. meteor impact
B. invasive species E. occurrence of predator
C. pre-zygotic isolation
75. Mesozoic era considered as the “Age of Dinousaurs” because of dinosaurs were the dominant
species of the age. What era did land animals first appear?
A. PreCambrian era D. Palaeozoic era
B. Mesozoic era E. Cenozoic era
C. Holozoic era
76. When the anthrosphere emerge?
A. PreCambrian era D. Palaeozoic era
B. Mesozoic era E. Cenozoic era
C. Holozoic era
77. Which one of these processes describes bottleneck effect?
A. chance events that change allele frequency of population for a long period of time
B. alleles transferred to the next generation in portions that differ from previous generation
C. transfer of alleles in and out of a population due to movement of fertile individuals
D. by chance, allele frequencies of the founders may be different from of the population they left
E. sudden change in environments that alters gene frequency of a population
78. In the formula for determining a population's genotype frequencies, the "pq" in the term 2pq is
necessary because ________.
A. the population is diploid
B. heterozygotes can come about in two ways
C. the population is doubling in number
D. heterozygotes have two alleles
E. the frequency of the dominant allele
79. Which of the following is the BEST modern definition of evolution?
A. descent with modification D. change in the number of genes
B. survival of the healthiest E. inheritance of acquired characters
C. able to reproduce quickly
80. Crushed dolomite dumping in Manila Bay raises more issues effect on marine organism e.g. the
loss of sardine spawning grounds. The surviving population happens to spawn eggs on dolomite
sand, on average, than the initial population. If spawning of eggs in dolomite is genetically
determined, what effect has the sardine population experienced during the dumping of dolomite
sand?
A. directional selection D. disruptive selection
B. a founder event E. a genetic bottleneck
C. an artificial selection
81. The Fukushima Daiichi nuclear disaster was due to a 2011 nuclear accident at the Fukushima
Daiichi Nuclear Power Plant in Japan, led to high radiation levels for miles surrounding the plant.
The high levels of radiation caused elevated mutation rates in the surviving organisms, and
evolutionary biologists have been studying daisy populations in the Fukushima area ever since.
Based on your understanding of evolutionary mechanisms, which of the following most likely
occurred in the daisy populations following the accident?
A. Mutations caused major changes in rodent physiology over time.
B. Mutation led to increased genetic variation.
C. Mutation caused genetic drift and decreased fitness.
D. Mutation caused the fixation of new alleles.
E. Mutation led to form new varieties of organism.
82. Three populations of crickets look very similar, but the males have courtship songs that sound
different. What function would this difference in song likely serve if the populations came in
contact?
A. a temporal reproductive isolating mechanism
B. a postzygotic isolating mechanism
C. a behavioral reproductive isolating mechanism
D. a gametic reproductive isolating mechanism
E. a pre zygotic isolating mechanism
83. Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they
are fertile. This kind of isolation is most similar to which of the following reproductive isolating
mechanisms?
A. physical isolation D. temporal isolation
B. behavioral isolation E. habitat isolation
C. gametic isolation

9. 84. Rank the following in order from most general to most specific.
I. gametic isolation
II. reproductive isolating mechanism
III. sperm-egg incompatibility in sea urchins
IV. prezygotic isolating mechanism
A. 2, 3, 1, 4 D. 2, 4, 1, 3
B. 4, 1, 2, 3 E. 4, 2, 1, 3
C. 4, 2, 3, 1
85. Two species of frogs belonging to the same genus occasionally mate, but the embryos stop
developing after a day and then die. These two frog species separate by ________.
A. hybrid zygote abnormality D. hybrid infertility
B. low hybrid viability E. allopatric speciation
C. sympatric speciation
86. Which period had the greatest increase in the number of extant species?
A. Paleozoic D. Mesozoic
B. Cenozoic E. Permian
C. Cambrian
87. Dr. Shaun Murphy wants you to construct a phylogenetic tree of orchids. She gives you tissue
from seven orchid species and one lily. What is the most likely reason she gave you the lily?
A. to serve as an outgroup
B. to see if the lily is a cryptic orchid species
C. to see the same shared derived characters
D. to demonstrate the allopatric speciation
E. to identify the mode of reproduction
88. Giant squids and tamaraws belong to the same…
A. order. D. kingdom.
B. class. E. phylum.
C. genus.
89. Assuming chimps and gorillas are humans' closest relatives, removing humans from the great ape
clade and placing them in a different clade has the effect of making the phylogenetic tree of the
great apes ________.
A. polyphyletic D. paraphyletic
B. monophyletic E. taxonomic
C. cladistic
90. If you were using cladistics to build a phylogenetic tree of cats, which of the following would be
the best outgroup?
A. lion D. domestic cat
B. wolf E. leopard
C. cheetah
91. A phylogenetic tree constructed using sequence differences in mitochondrial DNA would be most
valid for discerning the evolutionary relatedness of ________.
A. archaeans and bacteria D. fungi and animals
B. chimpanzees and humans E. sharks and dolphins
C. bats and rats
92. Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A
grouping that consists of species T, X, Y, and Z (but not U or V) makes up…
A. a monophyletic taxon.
B. an ingroup, with species U as the outgroup.
C. a paraphyletic group.
D. a polyphyletic group.
E. an outgroup, except for species V.
93. Based on the “Ladder of Nature” formulated of Aristotle, which among the following is the lowest
form?
A. diamonds E. mice
B. moss D. bamboo
C. anchovy
94. Which among the following is not a work of the Father of Botany?
A. planted the first botanical garden on Aristotle’s lyceum
B. studied the preparation of medicines from plants
C. described the anatomy of various plants
D. helped farmers for plant propagation
E. wrote the De Historia Plantarum
95. The separation of the Archaebacteria into a separate domain indicates that...
A. these organisms are very different from eubacteria and from eukaryotes.

10. B. organism should never be classified according to how they appear (morphological
characteristics)
C. early taxonomist rushed to classify them without closely examining them
D. optical viewing techniques have greatly improved so that we can better view these
microorganisms.
E. chemical composition of Archaebacteria are different because of its extreme habitat.
96. Which scientist believed that evolution happened when organisms passed on characteristics they
had acquired during their lifetime?
A. Darwin D. Lamarck
B. Cuvier E. Wallace
C. Linnaeus
97. Which among the following is a great contribution of Cesalpino that contributed to the work
Linnaeus?
A. classifying plants on the basis of the structure of their fruits and seeds
B. describing the plants into trees, shrubs, herbaceous perennials, and herbs
C. differentiating the animals with blood and animals without blood
D. dividing flowering plants into monocots and dicots (morphology)
E. identifying the based on floral characters
98. James Hutton saw that there was no need for global catastrophes to shape the surface of the
Earth. Instead, given sufficient time, the gradual ongoing processes of erosion, sedimentation,
and uplift could produce the geological features he saw. These concept is known as _______.
A. Principle of Uniformitarianism D. Catastrophism
B. Descent with Modification E. Survival of the Fittest
C. Hardy-Weinberg Equilibrium
99. Which among the scientist believe that that humans and the great apes were so closely related
that they should be placed in the same genus but withdrawn his idea because of religion
conflicts?
A. Darwin D. Lamarck
B. Cuvier E. Wallace
100. This scientist stated that by using or not using a certain body part, organisms could change in
their lifetime and that the trait gained would be passed down to their offspring.
A. Darwin D. Lamarck
B. Cuvier E. Wallace

11. LAGUNA UNIVERSITY
Senior High School
Laguna Sports Complex, Brgy. Bubukal, Santa Cruz, Laguna
Tel No. (049) 501-4360
First Quarterly Examination in General Biology 2
TABLE OF SPECIFICATION
CONTENT
NO. OF
HOURS
PERCENTAGE
NO. OF
ITEMS
Module 1: Genetics
Lesson 1: Mendelian Genetics
Lesson 2. Patterns of Inheritance
Lesson 3. Gene Interactions
Lesson 4. Application of Recombinant DNA
3.7
2.5
3.7
2.5
10.27%
6.95%
10.27%
6.95%
5
3
5
3
Module 2: Evolution and Origin of Biodiversity
Lesson 1. History of Life on Earth
Lesson 2. Mechanisms that Produce Change in
Population
Lesson 3. Development of Evolutionary Though
Lesson 4. Patterns of Descent with Modification
Lesson 5. Evidences of Evolution
2.5
3.7
2.5
3.7
3.7
6.95%
10.27%
6.95%
10.27%
10.27%
4
5
3
5
5
Module 3: Systematics Based on Evolutionary
Relationships
Lesson 1. 3-Domain Scheme and 5-KingdomScheme
Lesson 2. Based on Evolutionary Relationships:
Taxonomy
Lesson 3. Phylogenetic tree and Cladogram
2.5
2.5
2.5
6.95%
6.95%
6.95%
4
4
4
TOTAL 36 100% 50
Prepared by:
ALVIN A. PABORES, LPT
Teacher I
Noted by:
AGNES G. YCOGO
Dean, Senior High School
Approved by:
BARTOLOME T. TANGUILIG III, Ph.
Vice President for Academic Affairs