Question

In a cross between AaBbCcDdEe and AaBbccDdee, what proportion of the offspring would be expected to be A_bbC_ddE_? (A_ means AA or Aa).

a) 1/16
b) 1/8
c) 1/4
d) 1/2

Answer 1

The proportion of offspring that would be expected to be A_bbC_ddE_ in the given cross is 1/16.

So the correct option is a. 1/16

Step-by-step explanation:

To calculate the proportion of offspring that would be expected to be A_bbC_ddE_, we need to look at the genotypes of the parents. One parent has the genotype AaBbCcDdEe, and the other parent has the genotype AaBbccDdee.

When we cross these two genotypes, we can use the Punnett square method to determine the genotypes of the offspring. In this case, the A_bbC_ddE_ genotype will only occur if one allele from each of the parents is inherited by the offspring. Out of the 16 possible genotypes resulting from the cross, only one genotype matches A_bbC_ddE_. Therefore, the proportion of offspring that would have this genotype is 1/16.