Suppose that one allele for an enzyme codes for a form that is active from pH 6.2 to pH 6.8 and another allele for this enzyme c
odes for a form that is active from pH 6.7 to 7.2. Heterozygous individuals show enzyme activity from pH 6.2 to 7.2. Why does this wider range of activity show overdominance
This range shows overdominance because heterozygous individuals make a mixture of two proteins with different optimums. Overdominance is a genetic phenomenon.
<h3>Overdominance and genetics</h3>
Overdominance is a phenomenon that occurs when the phenotype of a heterozygous individual is found outside the range of homo-zygous individuals.
This phenomenon (overdominance) is relatively common in genetics.
Overdominance confers an adaptive advantage to heterozygous individuals.
Blood group AB has both A and B antigens, but no antibodies. Blood group B has B antigens with anti-A antibodies in the plasma. Blood group A has A antigens on the red blood cells with anti-B antibodies in the plasma
