Consequently, a test cross can help determine whether a dominant phenotype is homozygous or heterozygous for a specific allele. Diploid organisms, like humans, have two alleles at each genetic ...

Half of the possible offspring have the same allele combination; AA homozygous dominant and the other half have the Aa heterozygous combination. Probability close probabilityThe extent to which ...

Having one variant (heterozygous) is less likely to contribute to health issues. Some experts believe that having two mutations (homozygous) may lead to more serious problems. There are two ...

Individuals A and B both have brown eyes, even though A is heterozygous and B is homozygous (dominant). Only people with a homozygous recessive genotype can have blue eyes as shown by individual C.