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 ...

A pea plant could have a copy of the height gene that coded for “tall” and a copy of the same gene that coded for “short.” But the tall allele is “dominant,” meaning that a tall-short allele ...

As a group, carriers of recessive disorders are slightly less healthy and have a reduced chance of having offspring. This disadvantage is greatest for carriers of a recessive gene for intellectual ...

Genes code for proteins (nearly all of the time). So in some cases, the dominant allele is one that actually does code for the protein, while the recessive one does ...

As a group, carriers of recessive disorders are slightly less healthy and have a reduced chance of having offspring. This disadvantage is greatest for carriers of a recessive gene for intellectual ...

Populations live in rapidly changing environments—droughts come and go, food sources change, human activities reshape habitats. For scientists, this raises a fundamental puzzle: How do populations ...

Autosomal inheritance is when a parent passes down a condition to a child via autosomes, a type of chromosome. In autosomal inheritance, a copy of a faulty gene from one parent can cause a condition ...

Rare genetic traits are features that are uncommon within the general population. They can lead to different observable features or to rare physical abilities. Rare genetic traits are typically ...

Genetics play a strong role in nearsightedness. It is not the only factor, though. Looking at nearby objects for long periods of time and a lack of outdoor exposure can also contribute.