How many different types of gametes can be produced by a short plant with yellow, round peas with a heterozygous genotype (YyRrSs)?
A)3
B)6
C)8
D)10
E)12

Question

Quizplus · Accepted Answer

The first gene pair (Yy) can produce two different gametes: Y and y.
The second gene pair (Rr) can produce two different gametes: R and r.
The third gene pair (Ss) can produce two different gametes: S and s.
Therefore, by using the multiplication principle, the total number of different gametes that can be produced is 2 x 2 x 2 = 8.

How Many Different Types of Gametes Can Be Produced by a Short