Question

In humans, having dimples is a dominant trait. In order for a child to have dimples?

A. at least one parent must not have dimples and pass on the recessive allele.
B. both parents must not have dimples and pass on the recessive allele.
C. both parents must have dimples and pass on the dominant allele.
D. at least one parent must have dimples and pass on the dominant allele.
what is it?????

Answer 1

D. at least one parent must have dimples and pass on the dominate allele

Step-by-step explanation:

If you were to make a punet square with the alleles, only one parent would need the dominate allele to pass on the dimples to their offspring. If you you used DD, and dd in the punet square, the outcome would be 100% of the offspring would have simples. If Dd and dd were used in the punet square, 50% of the offspring would have dimples. If Dd and Dd were used, 75% of the offspring would have dimples.