Carl's genotype is heterozygous for a specific discrete trait.What does this say about Carl's phenotype?
A) The trait will not be expressed in his phenotype, but he will pass it on to his children.
B) The trait will only be expressed in his phenotype if he has the proper environmental exposure during his critical period.
C) If the trait is dominant, it will be expressed in his phenotype, but if it is recessive it won't be expressed.
D) The trait will be expressed in his phenotype.

Question

Quizplus · Accepted Answer

Being heterozygous means having two different alleles for a trait. If the trait is dominant, one allele is enough for it to be expressed in the phenotype. If the trait is recessive, it will not be expressed unless both alleles are recessive.

Carl's Genotype Is Heterozygous for a Specific Discrete Trait