For a common trait, prevalence is easily estimated from a random sample of the population. However, this is prohibitively expensive for a rare disease, which is often ascertained through probands [1].

Why are some genes dominant? Such as those for brown eyes over blue eyes, or so I am led to believe. Or do they actually blend in some way? Here's what science has to say: In the 19th century, ...

This is a shout out to the biologists out there: do you think the concept of dominance and recessive is worthwhile? In other words, does it help in conceptualization more than it hurts? Clearly the ...

All other chromosomes = autosomes close autosomesChromosomes that control the characteristics of an organism but do not determine its sex. Recessive traits may skip generations and will affect both ...

Genes and alleles are essential to basic genetics, but what are the differences between them? In this guide, we compare genes and alleles and provide simple definitions and examples for both. Genes ...

In Mendelian inheritance patterns, you receive one version of a gene, called an allele, from each parent. These alleles can be dominant or recessive. Non-Mendelian genetics don’t completely follow ...

In Ms. Havlik's idealized simulated population (Population One), students all began with heterozygous genotypes (Aa). That imaginary population reached the Hardy-Weinberg equilibrium in one generation ...

Your genes code for all your traits. Some genes are dominant and expressed if you receive a copy from one parent. Others are recessive and only apparent if you receive a copy from both parents. Genes ...

An organism's characteristics are controlled by the genes it inherits from its parents. A gene is a location on a chromosome where there is a DNA base sequence that codes for a protein that controls a ...