Which statement is true about homozygous alleles?

Homozygous alleles refer to a situation where an individual has two identical alleles for a particular gene, which can be either dominant or recessive. This means that the alleles can both contribute to phenotype expression. When both alleles are dominant, their trait will be expressed in the phenotype, but if they are both recessive, the recessive trait will be shown instead.

Recognizing that homozygous alleles can be either dominant or recessive is fundamental to understanding genetics. Dominant alleles tend to mask the expression of recessive alleles when they are present together, but in the case of homozygous alleles, they are two identical versions, whether they are the dominant or the recessive trait. Thus, the statement accurately reflects the nature of homozygosity in genetics.

The other statements may suggest elements of genetics but do not accurately relate to the concept of homozygous alleles. For example, while homozygous alleles can be expressed in the phenotype, this is not a defining characteristic as it can vary depending on whether the alleles are dominant or recessive. Additionally, homozygous alleles can be associated with disease conditions, particularly if the alleles are recessive and linked