Mary's mother has blonde hair and her father has brown hair.Mary has a gene for brown hair and a gene for blonde hair.She has brown hair.This indicates that the gene for brown hair is a:

Question

Quizplus · Accepted Answer

If Mary has brown hair despite having a gene for blonde hair, then brown hair must be dominant over blonde hair. Therefore, the gene for brown hair is a dominant gene.

Mary's Mother Has Blonde Hair and Her Father Has Brown