Question

How many different kinds of gametes will be produced by a plant having genotype AaBBCcDd?

• A. 4
• B. 8
• C. 16
• D. 2

Answer 1

The correct option is B 8

Gametes $\to$ ABcD
ABCd
ABcD
ABcd
aBCD
aBCd
aBcD
aBcd

Formula for the number of gametes
= $2^n$
where n = number of heterozygous allele pairs which in this case is 3
therefore, $2^3$ = 8.