When two mice homozygous for color, white and gray, are crossed in the first generation, all mice are gray.

When two mice homozygous for color, white and gray, are crossed in the first generation, all mice are gray. What color is dominant? What is the probability (in%) of the appearance of a white mouse in the first generation?

Given:
A-gray
a-white

To find:
environment sign, F2

Decision:
The dominant sign of gray color
R: AA (gray) x aa (white)
G: Aa Aa Aa Aa

White mouse will not appear on Mendel’s 1st z-n

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