What is the probability that two lizards heterozygous for stripes on their tails (Ss) will produce homozygous offspring with no stripes (ss)?
A) 1
B) 1/2
C) 1/4
D) 1/8
E) 0

Question

Quizplus · Accepted Answer

The probability is calculated using a Punnett square for two heterozygous parents (Ss x Ss). The possible genotypes for the offspring are SS, Ss, Ss, and ss. Only one of these four possibilities is ss (homozygous with no stripes), so the probability is 1/4.

What Is the Probability That Two Lizards Heterozygous for Stripes