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 ...

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 ...

The Becker muscular dystrophy (BMD) age of onset ranges from 5 to 60 years. However, some sources suggest symptoms usually develop in a person’s teens or early twenties. BMD is a type of recessive ...