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3 years ago

a white mouse is crossed with a black mouse. all the offspring were gray. the genes for fur color in mice show?

Biology

2 answers:

Alika [10]3 years ago

7 0

<span>partial dominance. is the best way or it can be 3/4.

</span>

Step2247 [10]3 years ago

6 0

Answer:

The genes for skin color in mice show incomplete dominance.

Explanation:

In the field of genetics, we speak of incomplete dominance when the phenotype of heterozygous individuals is intermediate between the phenotypes of two homozygotes. This can be seen in the question where a black mouse crossed with a white mouse giving rise to a mouse with the intermediate phenotype, which is gray in color.

This is because only one copy of the active gene cannot produce the full amount of enzyme responsible for maintaining the phenotype.

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What is least likely to be an example of a variation within a species ?

Ket [755]

Answer:

Option D, Number of limbs

Explanation:

Options for the question

a. Birth weight

b. Hair color

c. Number of offspring

d. Number of limbs

Solution

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Number of limbs is a physical characteristics, very unlikely governed by genetic variation. While factors such as hair color (grey, black, white etc.), height (tall, short, medium) etc. are governed by genetic variation as a result of which they have several phenotypic variations.

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