Dark hair is dominant to light hair. Complete a punnet square using two parents who have dark hair and are both heterozygous (Dd). What is the phenotype of the parents?
What is the genotype of the parents?
What is the percent chance that these parents will have a light-haired child?

Question

Dark hair is dominant to light hair. Complete a punnet square using two parents who have dark hair and are both heterozygous (Dd). What is the phenotype of the parents?
What is the genotype of the parents?
What is the percent chance that these parents will have a light-haired child?

anonymous · Answer

1.Dd would mean the have a phenotype of Dark hair

anonymous · Answer

2.three possible genotypes- DD (homozygous dominant), Dd (heterozygous), and dd (homozygous recessive). 

The parents are Dd heterozygous

anonymous · Answer

so the first is dark hair. second is Dd.

And I think the last one is 25%. Is that right?

anonymous · Answer

yeah I think so

anonymous · Answer

Thanks!

anonymous · Answer

your welcome!!