The following cross produced 250 offspring aaBbCcDd times Aa

The following cross produced 250 offspring: aaBbCcDd times AaBbccDD. Assume all the genes are unlinked and that the uppercase letters represent dominant alleles. How many of the offspring would be expected to express the dominant phenotype for all alleles (round to the nearest whole individual)? 94 63 47 8

Solution

Answer:

aaBbCcDd x AaBbccDD

Dominant genotype for all alleles=

Product of the probability = ½ x ¾ x ½ +1 = 3/16

Among 250 offsprings the dominant phenotype alleles are= 250 x 3/16 = 47