Respuesta :
Answer:
black hair: 25%, chestnut hair, 75%
Explanation:
Heterzygous is when an organism has two different alleles (one dominate, one recessive). If your form a Punnet square (Ee on top, Ee on sides) the allele combinations are:
1: EE
2: Ee
3: Ee
4: ee
Therefore e, the black hair, has 25% because the other times it is masked by the dominate allele. Chestnut hair has 75%, represented by E.