Chapter 9
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The document contains 20 multiple choice questions about basic genetics concepts such as Mendel's laws of inheritance, alleles, dominance, genotypes, phenotypes, monohybrid and dihybrid crosses. The questions cover topics like inheritance of traits in dogs, traits studied by Mendel in peas, parts of flowers, gamete formation, and Punnett squares.
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Genetics - Mendellian Principles of Heredity
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not so easy but understandable INTRA INTER ALLELIC INTERACTION (NON MENDELIAN GENETICS)
Chapter 5 Section 1 Notes (2016)
Introduction to Genetics
Gregor Mendel
Punnet Squares
Types of Dominance
Monohybrid inheritance,laws of dominance and Law of segregation
Prepared for B. Sc. III Botany students, based on the syllabus prescribed by Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.
Genetics notes
Gregor Mendel's historic discovery and experiments.
How Punett Squares work
Explanation of the differences between chromosomes, genes, and alleles.
Definitions of vocabulary words.
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not so easy but understandable INTRA INTER ALLELIC INTERACTION (NON MENDELIAN GENETICS)
Chapter 5 Section 1 Notes (2016)
Introduction to Genetics
Gregor Mendel
Punnet Squares
Types of Dominance
Monohybrid inheritance,laws of dominance and Law of segregation
Prepared for B. Sc. III Botany students, based on the syllabus prescribed by Dr. Babasaheb Ambedkar Marathwada University, Aurangabad.
Genetics notes
Gregor Mendel's historic discovery and experiments.
How Punett Squares work
Explanation of the differences between chromosomes, genes, and alleles.
Definitions of vocabulary words.
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Blaine Kitchenware – Case AssignmentMBA – Corporate Finance.docx
Blaine Kitchenware – Case Assignment
MBA – Corporate Finance
You have been hired as a consultant to Victor Dubinski, the CEO of Blaine Kitchenware. You are charged with putting together a written report with supporting numerical analysis that addresses the following items:
1. Is the current capital structure and payout policy for Blaine optimal? Explain and justify your conclusion. Use numbers whenever possible.
2. Should Blaine recommend a large share repurchase to the Board of Directors? What are the advantages and disadvantages of this action? Again, explain and justify your conclusions. Use numbers whenever possible.
3. Consider two specific share repurchase proposals:
a. First Proposal
i. Blaine will issue $50 million in new debt at an interest rate of 6.75%
ii. Blaine will use $209 million of cash from its balance sheet
iii. Blaine will use these two sources of cash to repurchase 14 million shares at $18.50/share.
b. Second Proposal
i. Blaine will issue $95 million in new debt at an interest of 6.875%
ii. Blaine will use $209 million of cash from its balance sheet
iii. Blaine will use the two sources of cash to repurchase 16 million shares at $19.00/share.
c. Third Proposal
i. Blaine will issue $156 million in new debt at 7.125%
ii. Blaine will use $209 million of cash from its balance sheet
iii. Blaine will use the two sources of cash to repurchase 18.5 million shares.
d. How does a share repurchase affect Blaine? Consider the impact on items including (but not limited to) Blaine’s EPS, ROE, interest coverage, debt ratio, debt rating, the family’s ownership interest (proportion of shares outstanding) and the company’s cost of capital (WACC).
e. What is your recommendation for the good of the company based on your analysis of the share repurchase options? Should they stay with the status quo, or go with one of the recapitalization options?
BSC1005 Biology General
Chapter 10
Patterns of Inheritance
1
Chapter 10: Patterns of Inheritance, Mendel Laws
Multiple-Choice Questions
2) Which of the following statements best represents the theory of pangenesis developed by Hippocrates?
A) Pregnancy is a spontaneous event, and the characteristics of the offspring are determined by the gods.
B) Particles called pangenes, which originate in each part of an organism's body, collect in the sperm or eggs and are
passed on to the next generation.
C) Offspring inherit the traits of either the mother or the father, but not both.
D) Fertilization of plants is dependent on an animal.
E) Heritable traits are influenced by the environment and the behaviors of the parents.
3) Which of the following statements regarding hypotheses about inheritance is false?
A) The theory of pangenesis incorrectly suggests that reproductive cells receive particles from somatic cells.
B) Contrary to the theory of pangenesis, somatic cells do not influence eggs or sperm.
C) The blending hypothesis does not explain how trait ...
Question 1 Mammals have two traits that set them apart from all .docx
Question 1
Mammals have two traits that set them apart from all other animals. These are
A.
body hair or fur, and being homeothermic.
B.
body hair or fur, and milk production.
C.
four-chambered heart and milk production.
D.
amniotic eggs and milk production.
E.
four-chambered heart and body hair or fur.
5 points
Question 2
Which of the following are adaptations to land of both gymnosperms and angiosperms but are lacking in ferns and mosses?
A.
fruits and flowers
B.
spores
C.
pollen and seeds
D.
vascular system
E.
roots, stems, and leaves
5 points
Question 3
Which of the following characteristics is not shared by typical birds and mammals?
A.
four limbs
B.
endothermy
C.
insulating skin structures
D.
four-chambered heart
E.
milk production
5 points
Question 4
Lichens are
A.
parasitic interactions between a fungus and an alga.
B.
capable of causing some obscure diseases.
C.
insensitive to changes in the environment.
D.
only found growing on living matter.
E.
symbiotic associations between a fungus and an alga.
5 points
Question 5
In bryophytes, the rhizoids
A.
serve as attachment structures.
B.
are involved in reproduction.
C.
obtain nutrients.
D.
lure possible prey.
E.
obtain water.
5 points
Question 6
The segmented worms of the phylum Annelida
A.
have an open circulatory system.
B.
are acoelomate.
C.
display radial symmetry.
D.
possess setae on each segment.
E.
move by use of flagella.
5 points
Question 7
It is generally thought that four critical innovations arose during the evolution of our ape-like ancestors into humans. All of the following are innovations except
A.
expansion of the human brain.
B.
development of the opposable thumb.
C.
use of brain power for abstract thought.
D.
bipedalism.
E.
toolmaking.
5 points
Question 8
This characteristic allows fungi to withstand heat and drought conditions.
A.
hyphae
B.
spores
C.
cell walls
D.
specialized organelles
E.
mycelia
5 points
Question 9
In general, mammals are not good at dispersing chili plant seeds because
A.
the chili seeds do not stick to the mammals’ fur.
B.
chili seeds are dispersed mainly by the wind.
C.
the seeds die as they pass through the digestive tract.
D.
the mammals are the main pollinators for the chili plant.
E.
the mammals do not travel very far before they release the chili seeds.
5 points
Question 10
It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)
A.
bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.
B.
origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.
C.
development of tissues, photosynthesis, bilateral symmetry, multicellularity.
D.
development of the versatile forelimb, multicellularity, origin of patterns o ...
13- What law did Mendel devise after his experiment with two traits- a.pdf
13. What law did Mendel devise after his experiment with two traits? a. The Law of Phenotypes
b. The Law of Segregation c. The Law of Genotypes d. The Law of Independent Assortment 14.
Why were the traits of pod color and shape transmitted independently? a. they were on the same
gene b. they were on the same chromosome c. they were on different chromosomes d. they were
both recessive 15. What was William Sutton's contribution to genetics? a. that chromosomes are
made up of many genes b. that chromosomes divide c. that chromosomes copied themselves d.
that chromosomes were one molecule 16. What determines the sex of an individual? a. two genes
on a chromosome b. two alleles on a chromosome c. the tenth gene on a chromosome d. the X
and Y chromosomes 17. Which flies had white eyes in the F2 generation of Morgan's
experiments? a. only females b. half females and half males c. only males d. 25% males and 75%
females 18. How is eye color in fruit flies related to the sex of the organism? a. the gene for eye
color is on the X chromosome b. the gene for eye color is heterozygous c. the gene for eye color
is on the Y chromosome d. the gene for eye color is recessive 19. What process allows
chromosomes to exchange sections of DNA? a. chiasmata b. cross-linking c. meiosis d. crossing-
over 6. In Mendel's Figeneration, the flowers were a. all white b. all purple c. some purple and
some white d. lavender 7. What was belleved to be the makeup of the F 1 alleles? a. both purple
b. both whito c. one purple and one white d. three purple 8. The F F 2 generation can be
demonstrated by using this kind of diagram? a. The Punnett squaro b. Pi chart c. family tree d.
bar graph 9. Individuals with two identical alleles for a trait are a. heterozygous b. identical c.
genotypes d. homozygous 10. In this Punnett square. what does the PP refer to? a. two dominant
alleles b. one dominant, one recessive alleles c. two recessive alleles d. two lavender alleles 11.
In the Punnett square above, what is the probability of white flowers? a. 10% b. 25% c. 50% d.
100% 12. Which one of Mendel's plants produced white flowers? a. the plant with two recessive
p alleles b. the plant with two dominant P alleles c. from a mixture of the two alleles P and p d.
from a different plant.
Cbse class 10 science chapter 9 heredity and evolution2015 11-09
Cbse class 10 science chapter 9 heredity and evolution
Biology 103 Lab Final1. How many pairs of chromosomes does a n.docx
Biology 103 Lab Final
1. How many pairs of chromosomes does a normal human somatic cell have?
A. 46
B. 23
C. 22
D. 44
E. 21
2. How many chromosomes does a normal human gamete have?
A. 46
B. 23
C. 22
D. 44
E. 21
3. What phase is pictured?
A. Interphase
B. Prophase
C. Metaphase
D. Anaphase
E. Telophase
4. What phase is pictured?
a. Interphase
b. Prophase
c. Metaphase
d. Anaphase
e. Telophase
5. What phase is pictured?
a. Interphase
b. Prophase
c. Metaphase
d. Anaphase
e. Telophase
6. If a man with type O blood and a woman with type A blood have a child with Type O blood, what a are the genotypes of the parents?
A. AA and OO
B. AO and AO
C. AO and OO
D. AB and OO
E. OO and OO
7. What is the difference in animal mitosis and plant mitosis?
A. Plant cells do not have a nucleus and animal cells do.
B. Plants duplicate their chloroplasts and animal cells do not duplicate their mitochondria.
C. Plant mitosis is faster than animal mitosis.
D. Plant cells skip metaphase.
E. Plant cells separate by a cell plate and animal cells separate by a cleavage furrow.
8. The study of hereditary patterns in living things is known as
A. Life
B. Genetics
C. Phenotyping
D. Genotyping
E. Traits
9. Who is the Father of Genetics?
a. Hooke
b. Darwin
c. Linne
d. Mendel
e. van Leeuwnhoek
10. A monohybrid cross involves how many traits?
a. 1
b. 2
c. 3
d. 4
e. 5
11. A dihybrid cross involves how many traits?
a. 1
b. 2
c. 3
d. 4
e. 5
12. How many different kinds of gametes may be produced by an organism with the genotype AaBb?
A. 1
B. 2
C. 3
D. 4
E. 5
13. Which of the following is not one of the blood phenotypes?
A. AB
B. O
C. B
D. A
E. BB
14. Which of the following chromosomes represents a normal human female?
A. XX
B. XYY
C. XY
D. X
E. Y
15. What causes Down’s syndrome?
A. An extra Y chromosome
B. An extra X chromosome
C. A missing chromosome on the 21st pair.
D. An extra chromosome on the 21st pair.
E. An extra chromosome on the 5th pair.
16. What causes Kleinfelter’s syndrome?
A. An extra Y chromosome
B. An extra X chromosome
C. A missing chromosome on the 21st pair.
D. An extra chromosome on the 21st pair.
E. An extra chromosome on the 5th pair.
17. The physical appearance of an individual
A. Character
B. Genotype
C. Dominance
D. Phenotype
E. Recessiveness
18. The genetic composition an individual possesses for a given trait
A. Allele
B. Gene pool
C. Genotype
D. Phenotype
E. None of these
Matching
19. _______ heterozygous A. masks the recessive form of a trait
20. _______ homozygous B. covered by the dominant form of a trait
21. _______ allele C. one dominant an one recessive allele for a trait
22. _______ dominant D. one of two or more possible forms of a gene
23. _______ recessive E. two identical alleles for a certain trait
Genetic Problems
24. In pea plants yellow seeds are dominant to green. A genetic cross between a heterozygous pea plant and a green pea plant will yield what ...
Question 1 This type of selection favors both extremes of the .docx
Question 1
This type of selection favors both extremes of the phenotype spectrum within a population.
A.
disruptive
B.
natural
C.
neutral
D.
stabilizing
E.
directional
5 points
Question 2
On a molecular level, all organisms
A.
have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes.
B.
have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code.
C.
use different means of storing genetic information.
D.
have the same bases in DNA and RNA, but different amino acids in proteins.
E.
show no similarities.
5 points
Question 3
Most mutations lead to a decreased chance of survival for the mutant organism. Rarely, a mutation can provide an increased chance of survival. These rare mutations provide a(n) _____________________ for the mutant.
A.
selective disadvantage
B.
environmental susceptibility
C.
adaptive
D.
directional shift
E.
selective advantage
5 points
Question 4
After being produced in the seminiferous tubules, sperm mature in the
A.
seminal vesicle.
B.
vas deferens.
C.
epididymis.
D.
ejaculatory duct.
E.
urethra.
5 points
Question 5
Random changes in gene frequency that occur in small populations describes the concept of
A.
genetic drift.
B.
adaptive radiation.
C.
parapatric speciation.
D.
sympatric speciation.
E.
convergent evolution.
5 points
Question 6
The primary male hormone is
A.
produced throughout a male’s entire lifetime.
B.
produced in the brain.
C.
testosterone.
D.
estrogen.
E.
only involved in sperm production.
5 points
Question 7
Which of the following statements about natural selection is true?
A.
Natural selection leads to increased likelihood of survival for certain individuals based on variation. The variation must come from outside the population.
B.
Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring.
C.
Natural selection causes variations to arise within a population.
D.
All individuals within a population have an equal likelihood of survival. Survival is based on chance.
E.
Natural selection leads to extinction.
5 points
Question 8
Which of the following is not true of the punctuated equilibrium theory?
A.
It was inspired in part by patterns observed in the fossil record.
B.
It suggests that most species undergo little phenotypic change during most of their evolutionary duration.
C.
It suggests that subgroups diverge and evolve at about equal and constant rates.
D.
It appears to be well supported by the fossil record.
E.
It proposes that most evolutionary change is concentrated in relatively brief episodes of change.
5 points
Question 9
Animals that possess both male and female sexual organs
A.
are hermaphroditic and typically cross-fertilize.
B.
are dioecious and typically self-fertilize.
C.
are parthenogenetic and typically self-fertilize.
D.
are hermaphroditic and typically ...
Dragon Genetics Hands on LabIntroductionThere are many patterns o.docx
Dragon Genetics Hands on LabIntroduction:
There are many patterns of inheritance. This lab will explore Mendelian traits where alleles are dominant or recessive. You will also have to understand genes that express incomplete dominance, codominance and are sex-linked. We will utilize this lab to explore those terms and to use our knowledge of gene combinations to create an organism.
Utilize this link to learn more about Mendelian traits, incomplete dominance and codominance.(Opens in new window) This link helps you to learn more about sex-linked genes. (Opens in new window)Part 1 Procedure: Checking for Understanding (Worth up to 15pts)
A. For each genotype, tell me if it’s homozygous or heterozygous. If it is homozygous also tell me if it is dominant or recessive.
1. BB
2. jj
3. Pp
4. RR
5. ff
B. Dimples (D) is dominant to (d) no dimples. Brown Eyes (B) are dominant to (b) blue eyes. For each genotype indicate the phenotype.
1. Dd
2. DD
3. dd
4. BB
5. bb
6. Bb
C. For each phenotype list the genotype(s). Trait: Red flower (R); White flower (r)
1. Red flower (homozygous)
2. Red flower (heterozygous)
3. White flowerPart 2: Creating the Parents (Worth up to 48 pts)
1. Flip a coin to determine the genotype for each trait and record it in the data table.
a. Heads= allele 1, Tails = allele 2 ( Example: if you flipped heads twice, your dragon will have two copies of allele 1 for her genotype)
2. Determine the phenotype resulting from the allele pair for each trait.
3. Repeat steps 1-2 for each trait and complete the Mama Dragon’s Table 1.
a. Pay attention to the notes under the trait; it means it does not fully follow Mendelian rules.
Example:
For the trait Eye Size. I flipped my coin 2 times. Flip 1= heads (E); Flip 2= heads (E). So I would put EE in the Genotype box and Two Small Eyes in the Phenotype box for that trait.
Table 1: Genotypes and Phenotypes for Mama Dragon
Trait
Allele 1
Allele 2
Genotype
Phenotype
Eye Size & Number
Two Small (E)
One large (e)
Eye Color
(incomplete Dom)
Red (R)
White (r)
Tail Shape
Curly (T)
Straight (t)
Tail Color
Purple (P)
Orange (p)
Teeth
Sharp (S)
Round (s)
Feet
Four toes (F)
Two toes (f)
Horn Color
(Codominant)
Purple (P)
White (W)
Ear Shape
Pointy (Y)
Round (y)
Claws
Long (L)
Short (l)
Skin Color
(Codominant)
Blue (B)
Yellow (Y)
Mane Texture
(incomplete Dom)
Curly (M)
Straight (m)
Dragon Hemophilia
(Sex- Linked)
Hemophilia (XH)
Normal Clotting (Xh)
Table 2: Genotype and Phenotypes for Daddy Dragon
Trait
Allele 1
Allele 2
Genotype
Phenotype
Eye Size & Number
Two Small (E)
One large (e)
Eye Color
(incomplete Dom)
Red (R)
White (r)
Tail Shape
Curly (T)
Straight (t)
Tail Color
Purple (P)
Orange (p)
Teeth
Sharp (S)
Round (s)
Feet
Four toes (F)
Two toes (f)
Horn Color
(Codominant)
Purple (P)
White (W)
Ear Shape
Pointy (Y)
Round (y)
Claws
Long (L)
Short (l)
Skin Color
(Codominant)
Blue (B)
Yellow (Y)
Mane Texture
(incomplete Dom)
Curly (M)
Straigh ...
QUESTION 1Random changes in gene frequency that occur in small.docx
QUESTION 1
Random changes in gene frequency that occur in small populations describes the concept of
A.
sympatric speciation.
B.
parapatric speciation.
C.
convergent evolution.
D.
genetic drift.
E.
adaptive radiation.
5 points
QUESTION 2
Animals that possess both male and female sexual organs
A.
are dioecious and typically self-fertilize.
B.
are hermaphroditic and typically cross-fertilize.
C.
are dioecious and typically cross-fertilize.
D.
are parthenogenetic and typically self-fertilize.
E.
are hermaphroditic and typically self-fertilize.
5 points
QUESTION 3
Immature eggs are called
A.
blastocysts.
B.
basal cells.
C.
follicles.
D.
oocytes.
E.
ovaries.
5 points
QUESTION 4
On a molecular level, all organisms
A.
use different means of storing genetic information.
B.
have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes.
C.
have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code.
D.
have the same bases in DNA and RNA, but different amino acids in proteins.
E.
show no similarities.
5 points
QUESTION 5
The primary male hormone is
A.
only involved in sperm production.
B.
produced in the brain.
C.
testosterone.
D.
estrogen.
E.
produced throughout a male’s entire lifetime.
5 points
QUESTION 6
Up until the late eighteenth and early nineteenth centuries, many naturalists believed that all species of living organism(s) had been created separately and had remained unchanged since the creation. Around that time, scientific research provided findings that were contradictory to that idea. All of the following are findings that contradict the idea of a single creation. Choose the exception.
A.
Even though the limbs of various mammals carry out different functions (swimming, gliding, running, holding, etc.), the bone patterns are very similar.
B.
The limbs of some mammals serve the same purpose but their bone patterns are very different.
C.
Some fossils of extinct organisms are quite different from living organisms.
D.
The platypus is only found in Australia and the dodo was only found on Madagascar.
E.
As scientists explored more of the earth, they found that different groups of organisms were found in the different regions.
5 points
QUESTION 7
A population in Hardy-Weinberg equilibrium
A.
requires a small population size.
B.
is under no selective pressures.
C.
consists of genotype frequencies that are constantly changing.
D.
consists of allele frequencies that are constantly changing.
E.
is very common in nature.
5 points
QUESTION 8
Human chorionic gonadotropin (hCG)
A.
is produced by the amnion.
B.
is needed to form the placenta.
C.
acts as a hormone signaling menstruation.
D.
can be used to reveal pregnancy.
E.
is stored in the ovaries.
5 points
QUESTION 9
Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) are
A.
produced in both male ...
Question 1 Random changes in gene frequency that occur in small .docx
Question 1
Random changes in gene frequency that occur in small populations describes the concept of
A.
convergent evolution.
B.
adaptive radiation.
C.
sympatric speciation.
D.
genetic drift.
E.
parapatric speciation.
5 points
Question 2
On a molecular level, all organisms
A.
have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes.
B.
have the same bases in DNA and RNA, but different amino acids in proteins.
C.
have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code.
D.
show no similarities.
E.
use different means of storing genetic information.
5 points
Question 3
Which of the following is the best description of an adaptation?
A.
a trait that will be beneficial in the future
B.
a trait that was beneficial to survival in the past
C.
an environmental change that selects for certain traits
D.
a trait that is of no advantage to survival
E.
a trait that is currently beneficial to survival
5 points
Question 4
Which of the following statements about natural selection is true?
A.
All individuals within a population have an equal likelihood of survival. Survival is based on chance.
B.
Natural selection results in those individuals within a population who are best-adapted surviving and producing more offspring.
C.
Natural selection leads to extinction.
D.
Natural selection causes variations to arise within a population.
E.
Natural selection leads to increased likelihood of survival for certain individuals based on variation. The variation must come from outside the population.
5 points
Question 5
Embryonic development includes all of the following except
A.
cleavage.
B.
growth.
C.
organogenesis.
D.
gastrulation.
E.
fertilization.
5 points
Question 6
Vestigial organs
A.
include the human appendix and wisdom teeth and a snake’s hipbones.
B.
did not have a function when they first developed, but do so today.
C.
are not found in present-day organisms.
D.
are similar in many organisms.
E.
must have evolved individually in different organisms.
5 points
Question 7
Most mutations lead to a decreased chance of survival for the mutant organism. Rarely, a mutation can provide an increased chance of survival. These rare mutations provide a(n) _____________________ for the mutant.
A.
directional shift
B.
selective disadvantage
C.
adaptive
D.
selective advantage
E.
environmental susceptibility
5 points
Question 8
Which of the following is not true of the punctuated equilibrium theory?
A.
It suggests that most species undergo little phenotypic change during most of their evolutionary duration.
B.
It proposes that most evolutionary change is concentrated in relatively brief episodes of change.
C.
It was inspired in part by patterns observed in the fossil record.
D.
It appears to be well supported by the fossil record.
E.
It suggests that subgroups diverge and evolve at about equal and constant rates.
5 poin ...
Please- answers all my question is for genetic class 3- Describe the.docx
Please, answers all my question is for genetic class
3. Describe the pattern of inheritance shown in the pedigree below, giving evidence to support your answer. Give the genotypes for individuals II-2, II-4 and II-2. Include a legend for the symbols used. (10 marks) Describe the pattern of inheritance shown in the pedigree below, giving evidence to support your answer. Give the genotypes for individuals II-4, II-7 and III-7. Include a legend for the symbols used. ( 10 marks) 5. A type of hemophilia is due to an X-linked recessive allele. An affected man whose phenotype has been successfully managed now has children with a woman who is a carrier. Providing a legend for your, answer the following questions: a. What are the genotypes of the mother and father? (1 mark) b. What are the probabilities that i. a child will be affected with hemophilia. ii. a child is a carrier. iii. their daughter is a carrier. iv. their male fetus will be affected. (4 marks) 6. Genes for two different recessive disorders are linked on the X chromosome; they are 26 map units apart. A woman is a carrier for both disorder A and disorder B , with the alleles for these genes in cis. Her husband has normal alleles for both of these genes. The woman is pregnant with their first son. What is the probability (in percent) this son is affected with both disorders? Explain, showing the proportions and types of the woman's gametes and identifying them as parental or recombinant. (5 marks) 7. In certain human matings of albino and black-haired parents, the offspring are always blackhaired. When these black-haired offspring of the different families mate with each other (non-consanguineously) and their children are pooled to get significant data, these are the children's phenotypic proportions: 9 black-haired children 3 brown-haired children 4 albino children a. How many genes are involved in this trait? b. How many alleles of each gene are there? c. What type of gene interaction is occurring for this trait? Describe it. d. What are the genotypes of the initial albino and black-haired parents? Provide a legend. e. What are the genotypes of their offspring (all black-haired)? f. What are the genotypes and the specific proportions of the albino children in the third generation? g. What are the genotypes of the brown-haired children? 8. Which type of chromosomal aneuploidy typically has less severe effects on an individual: sex chromosome aneuploidy or autosomal aneuploidy? Explain why. (4 marks) 9. An organism has six chromosomes in its somatic cells. Determine the number of gametes with different chromosome compositions that this organism can potentially create. Explain your answer, including the genetic basis for your calculation. Ignore the allelic variation created by crossing over. ( 4 marks) 10. Compare the inheritance and transmission of Xlinked genes with that of mitochondrial genes. (4 marks) 11. A woman has a normal number of fingers and toes. She has many relatives with ex.
QUESTION 1All of the following are parts of a flower except the.docx
QUESTION 1
All of the following are parts of a flower except the
A.
carpel.
B.
ovary.
C.
fruit.
D.
stamen.
E.
cuticle.
QUESTION 2
The segmented worms of the phylum Annelida
A.
have an open circulatory system.
B.
possess setae on each segment.
C.
are acoelomate.
D.
display radial symmetry.
E.
move by use of flagella.
QUESTION 3
In bryophytes, the rhizoids
A.
obtain nutrients.
B.
are involved in reproduction.
C.
obtain water.
D.
lure possible prey.
E.
serve as attachment structures.
QUESTION 4
Which of the following is not a characteristic differentiating Neanderthals from modern humans?
A.
Neanderthals had smaller brains.
B.
Neanderthals had larger noses.
C.
Neanderthals had projecting brow ridges.
D.
Neanderthals were shorter.
E.
Neanderthals were stronger.
QUESTION 5
Fungi exhibit certain characteristics. One of these characteristics is that they
A.
are capable of carrying on photosynthesis.
B.
lack cell nuclei.
C.
reproduce using seeds and pollen.
D.
reproduce using spores.
E.
are prokaryotes.
QUESTION 6
In plants, the secondary metabolites are primarily responsible for
A.
food gathering.
B.
nutrition.
C.
defense.
D.
protection against ultraviolet radiation.
E.
overcoming air pollutants.
QUESTION 7
In cnidarians, nematocysts are important in
A.
obtaining oxygen from the water.
B.
obtaining prey.
C.
movement.
D.
excretion of wastes.
E.
food digestion.
QUESTION 8
Cnidarians and ctenophores are similar in that they both have
A.
a pseudocoel.
B.
a digestive tract with two openings.
C.
radial symmetry.
D.
mesoderm.
E.
nematocysts.
QUESTION 9
All members of the phylum Chordata share
A.
exoskeletons.
B.
gills present throughout their lives.
C.
tails present throughout their lives.
D.
a vertebral column.
E.
a notochord present sometime in their lives.
QUESTION 10
It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)
A.
development of tissues, photosynthesis, bilateral symmetry, multicellularity.
B.
development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.
C.
multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.
D.
bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.
E.
origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.
QUESTION 11
Mammals have two traits that set them apart from all other animals. These are
A.
body hair or fur, and being homeothermic.
B.
four-chambered heart and milk production.
C.
amniotic eggs and milk production.
D.
body hair or fur, and milk production.
E.
four-chambered heart and body hair or fur.
QUESTION 12
Which of the following characteristics is not shared by typical birds and mammals?
A.
four limbs
B.
insulating skin ...
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