For this question, assume that hair colour can only be brown or red and follows the principles of simple dominant recessive inheritance. The dominant allele (B) corresponds to the colour brown and the recessive allele (r) corresponds to the colour red. If the mother is heterozygous and the father is homozygous for brown hair, what is the probability of having a child with the red hair phenotype?

For this question, assume that hair colour can only be brown or red and follows the principles of simple dominant recessive inheritance. The dominant allele (B) corresponds to the colour brown and the recessive allele (r) corresponds to the colour red. If the mother is heterozygous and the father is homozygous for brown hair, what is the probability of having a child with the red hair phenotype?

For this question, assume that hair colour can only be brown or red and follows the principles of simple dominant recessive inheritance. The dominant allele (B) corresponds to the colour brown and the recessive allele (r) corresponds to the colour red. If the mother is heterozygous and the father is homozygous for brown hair, what is the probability of having a child with the red hair phenotype?




A) 75%
B) 0%
C) 25%
D) 100%



Answer: B