Question

ans it fast class 10 bio chapter 9 related question​

Answer 1

Gene for red hair is recessive and black hair is dominant.

Let genotype of black hair = 'BB'

red hair = 'bb'

After crossing , the genotype of child will be 'Bb'.

According to the law of dominance, recessive trait will not be expressed in a heterozygous condition.

so , the child will inherit a Gene for black hair from his father.