How are a heterozygous and a homozygous individual different?
a. All of the gametes from a homozygote carry the same version of the gene while those of a heterozygote will differ.
b. Homozygotes have one chromosome while heterozygotes have two similar chromosomes.
c. Heterozygotes carry two copies of a gene while homozygotes only carry one.
d. The homozygote will express the dominant trait and the heterozygote will express the recessive trait.