Question

How many phenotypic categories are expected in the progeny of a tetrahybrid cross?

a)5

b)7

c)9

d)11

Answer 1

hiii

your answer is option c that is 9

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Answer 2

C) 9. Number of types of gametes is 2X2X2 = 8 but there are 3 possibilities for combination of alleles across the each gene that includes the AA, Aa, aa in case of the first gene.

All the three, the total number would be 3X3X3 = 27.

The number of genotypically distinct progeny would be 27, when you consider three genes.