The benefits of antioxidants are very important to good health, because if free radicals are left unchallenged, they can cause a wide range of illnesses and chronic diseases. The human body naturally produces free radicals and the antioxidants to counteract their damaging effects.
Supplement. When a pair or set of genes are on the same chromosome, they are usually inherited together or as a single unit. For example, in fruit flies the genes for eye color and the genes for wing length are on the same chromosome, thus are inherited together.
Two types of genetic inheritance discussed in this lesson are sex-linked inheritance and polygenic inheritance. Sex-linked inheritance occurs when a trait is linked to one of the sex chromosomes. Traits can be X-linked or Y-linked.