Carolyn has an allele for red hair and an allele for brown hair. She has brown hair. Which of the following statements is true about Carolyn?

A) Carrie is heterozygous for the hair color gene.
B) Carrie's phenotype does not match her genotype.
C) The gene for red hair must be recessive.
D) All of the above.

Question

Meghna Chhabra · Accepted Answer

Final Answer : D, Explanation :  Carolyn is heterozygous because she carries two different alleles for the hair color gene (red and brown). Her phenotype (brown hair) does not match one of her genotypes (red hair allele), indicating that the red hair allele is recessive and the brown hair allele is dominant, as the dominant allele's trait (brown hair) is expressed in her phenotype.

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