When alleles of the pair of chromosomes are different, the person is _____ and the trait expressed will depend on the relations among the genes.
A) homozygous
B) heterozygous
C) dominant
D) polygenic

Question

Quizplus · Accepted Answer

When alleles of the pair of chromosomes are different, the person is heterozygous. In this case, the trait expressed will depend on the relations among the genes. Homozygous individuals have identical alleles for a specific trait, whereas heterozygous individuals have different alleles. Dominant traits will always be expressed if the dominant allele is present, while recessive traits will only be expressed if the individual is homozygous recessive. Polygenic traits are determined by multiple genes, regardless of whether the individual is homozygous or heterozygous.

When Alleles of the Pair of Chromosomes Are Different, the Person