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.
However, the truth is always complicated. It isn't so simple as if you have the gene for a disease, you will get the disease.. Here are some of the reasons why: 1  While genes play a role in many disorders, so do the conditions and circumstances of your life and the decisions you make.2  In other words, heredity may influence your health, but so does your environment. 3  For example, some people have genes that put them at risk for cancer. Only a few human diseases are triggered by a single gene working by itself. 2  In most cases, a disease results from the actions of many genes. 3  An example of a single-gene disorder is Huntington's disease, which was discussed in the last chapter. 4  One error in one gene leads to the fatal health problems of HD.