processes or cel germ line\' leading to gametes. A B 5. Natural selection operates on individuals
either favorable or not, but it is the population that evolves over time. A B 6. Natural selection
can occur in a population with or without variation in heritable traits. A B 7. Nuclear DNA is
found in the nucleus of cells and in mitochondria. A (B 8. A nucleotide is a DNA unit made of
one sugar molecule, one phosphate group and one nitrogen base. A B 9. Humans can synthesize
all naturally occurring amino acids necessary for their body to function. A B 10. The genetic
code is universal in all vertebrates in which the same DNA triplets specify the same amino acids.
A B 11. Homeobox genes are an evolutionarily ancient, critically important type of regulatory
genes. A B 12. Gregor Mendel discovered that traits are inherited as discrete units\' later termed
genes\' A B 13. The relationship between dominant and recessive alleles in simple Mendelian
traits at the phenotype level is always about 4:1, i e. dominant to recessive expression. A B 14. A
genetic bottleneck describes a situation when a large population is reduced to few breeding
members resulting in reduced genetic diversity.
Solution
5. True.
It is the population that evolves and not its individual members.
6. False.
Variation is necessary for evolution to occur.
7. False.
Nuclear DNA is found in nucleus only. Mitochondria has organellar DNA.
8. True.
Nucleotide is formed of a pentose sugar, a nitrogen base and a phosphate group.
9. False.
Their are amino acids called as essential amino acids which cannot be formed by body. They
must be taken through diet.
10. True.
Genetic code is universal meaning same triplet codon codes for same amino acid in all
organisms.
11.
12. True.
Gregor Mendel discovered heridity units and named them as factors which later became known
as genes.
13. False.
The ratio is 3:1.
13.
processes or cel germ line leading to gametes. A B 5. Natural selec.pdf
1. processes or cel germ line' leading to gametes. A B 5. Natural selection operates on individuals
either favorable or not, but it is the population that evolves over time. A B 6. Natural selection
can occur in a population with or without variation in heritable traits. A B 7. Nuclear DNA is
found in the nucleus of cells and in mitochondria. A (B 8. A nucleotide is a DNA unit made of
one sugar molecule, one phosphate group and one nitrogen base. A B 9. Humans can synthesize
all naturally occurring amino acids necessary for their body to function. A B 10. The genetic
code is universal in all vertebrates in which the same DNA triplets specify the same amino acids.
A B 11. Homeobox genes are an evolutionarily ancient, critically important type of regulatory
genes. A B 12. Gregor Mendel discovered that traits are inherited as discrete units' later termed
genes' A B 13. The relationship between dominant and recessive alleles in simple Mendelian
traits at the phenotype level is always about 4:1, i e. dominant to recessive expression. A B 14. A
genetic bottleneck describes a situation when a large population is reduced to few breeding
members resulting in reduced genetic diversity.
Solution
5. True.
It is the population that evolves and not its individual members.
6. False.
Variation is necessary for evolution to occur.
7. False.
Nuclear DNA is found in nucleus only. Mitochondria has organellar DNA.
8. True.
Nucleotide is formed of a pentose sugar, a nitrogen base and a phosphate group.
9. False.
Their are amino acids called as essential amino acids which cannot be formed by body. They
must be taken through diet.
10. True.
Genetic code is universal meaning same triplet codon codes for same amino acid in all
organisms.
11.
12. True.
Gregor Mendel discovered heridity units and named them as factors which later became known
as genes.
13. False.
The ratio is 3:1.
