a heterozygous genotype might involve: In complete dominance, the dominant allele completely covers up the recessive one. The recessive allele isn’t expressed at all. One example is eye color ...

What Is Heterozygous Familial Hypercholesterolemia ... the clear cover over the front of your eye. It looks like a white or gray ring around the iris, the colored part of your eye.

You can have brown eyes whether you’re homozygous (two alleles for brown eyes) or heterozygous (one for brown and one for blue). This is unlike the allele for blue eyes, which is recessive.

Thus, according to Mendel's principles, a dihybrid cross between two heterozygous fruit flies with brown bodies and red eyes (BbEe X BbEe) should yield offspring with nine possible genotypes (BBEE ...

When people inherit the condition via their genes, it can be heterozygous or homozygous. “Heterozygous” means the person only has one copy of a gene that causes hemochromatosis, rather than two.

Homozygous deficiency of alpha 1-atitrypsin is known to predispose to pulmonary emphysema. Measurement of the trypsin inhibitory capacity (TIC) of serum specimens from 28 relatives of a homozygous ...