In a simple dominant-recessive inheritance pattern, what is the chance of the offspring exhibiting the dominant trait if one parent is heterozygous and the other is homozygous recessive?
A)25%
B)50%
C)75%
D)100%

Question

Quizplus · Accepted Answer

If one parent is heterozygous (Dd) and the other is homozygous recessive (dd), the Punnett square would result in 50% of the offspring being heterozygous and exhibiting the dominant trait (Dd), and 50% being homozygous recessive (dd) and not exhibiting the dominant trait. Therefore, the chance of the offspring exhibiting the dominant trait is 50%.

In a Simple Dominant-Recessive Inheritance Pattern, What Is the Chance