Question

just answer

If red hair is recessive to brown hair, and long tails are recessive to short tails, what would be the expected phenotypic ratio for the progeny produced from crossing a squirrel heterozygous for both characteristics with a squirrel heterozygous for hair color with a long tail?

Question 58 options:

	9 red-haired, long-tailed : 3 red-haired, short-tailed : 3 brown-haired, long-tailed : 1 brown-haired, short-tailed
	9 brown-haired, short-tailed : 3 brown-haired, long-tailed : 3 red-haired, short-tailed : 1 red-haired, long-tailed
	3 brown-haired, short-tailed : 3 brown-haired, long-tailed : 1 red-haired, short-tailed : 1 red-haired, long-tailed
	3 red-haired, short-tailed : 3 red-haired, long-tailed : 1 brown-haired, short-tailed : 1 brown-haired, long-tailed
	3 brown-haired, short-tailed : 1 brown-haired, long-tailed : 3 red-haired, short-tailed : 1 red-haired, long-tailed

Which statement about linkage is INCORRECT?

Question 46 options:

	Linked genes are always on the same chromosome
	Linkage results in less than 50% of progeny having the parental phenotypes.
	Linkage results in more than 50% of progeny having the parental phenotypes.
	Linked genes demonstrate less than 50% recombination.
	Unlinked genes demonstrate 50% recombination.

The process of translation utilizes energy in the form of ATP.

Question 47 options:

	True
	False

Answer 1

58. Answer: Option C is correct
Explanation:
Red hair = r
Bown hair = R
Long tail = l
Short tail = L

Parental cross: RrLl X Rrll
Progeny:
RL/Rl = Brown short
Rl/Rl = Brown long
rL/Rl = Brown short
rl/Rl = Brown long

RL/rl = Brown short
Rl/rl = Brown long
rL/rl = Red short
rl/rl = Red long
Brown short = 3
Brown long = 3
Red short = 1
Red long = 1
Phenotypic ratio = 3:3:1:1

46. Answer: Option B is correct
Explanation:
Due to Linkage, parental combinations are over-represented than recombinants in the progeny.

47. Answer: Option B is correct
Explanation:
The given statement is false.
The process of translation is driven by GTP hydrolysis.