What Does Homozygous Normal Mean?

Listen to pronunciation. (HOH-moh-ZY-gus JEE-noh-tipe) The presence of two identical alleles at a particular gene locus. A homozygous genotype may include two normal alleles or two alleles that have the same variant.

What is normal heterozygous or homozygous?

Generally speaking, there are three different possibilities: Someone is homozygous for the normal β-globin gene (has two normal copies) Someone is heterozygous (has one normal and one abnormal copy) Someone is homozygous for the abnormal β-globin gene (has two abnormal copies)

What is homozygous example?

If the alleles are identical, you're homozygous for that specific gene. For instance, it could mean you have two alleles for the gene that causes brown eyes. Some alleles are dominant, while others are recessive. ... You either have two dominant alleles (homozygous dominant) or two recessive alleles (homozygous recessive).