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k0ka [10]
3 years ago
14

You are given two true-breeding groups of rabbits. the first group has white hair. the second group has black hair. the second g

roup has black hair. when you perform a cross of these two groups to obtain an f1 generation, you see that all of your rabbits have grey hair. what would you expect of the f2 generation?
Biology
1 answer:
earnstyle [38]3 years ago
7 0
Well what is expected is a mode of inheritance that is incomplete dominance as the f1 offspring organisms are all heterozygous and that would mean that they would be intermediates of the 2 pure breeding parents, and have their own phenotype.

If you cross 2 f1 generation offspring

The resulting phenotype would be 1 white rabbit : 1 black rabbit : 2 grey rabbits.
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Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

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We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
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