A common mutations of DNA involves two adjacent thymines or cytosine, which, in presence of ultraviolet light, may form thymine dimers (damage to the structure of a biological molecule such as DNA formed from thymine via photochemical reactions), causing kinks in the DNA molecule that inhibit normal function.he order that the bases appear is insignificant in the DNA molecule. This means that there can be four different cross rungs â adenine with thymine, thymine with adenine, cytosine with guanine, and guanine with cytosine.
The thymus gland produces T-cells, which fight infection and thus help patients recover from a transplant. T-cells are one of the most important parts of the immune system. They are white blood cells that are responsible for 'coordinating' the body's immune response against viruses, parasites and bacteria. They are essential, said Dr. Daniel Douek, assistant professor of internal medicine at UT Southwestern.
Summary. The thymus gland acts to regulate the immune system through the development of immune cells responsible for cell mediated immunity. In addition to immune function, the thymus also produces hormones that promote growth and maturation.Thymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development.The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.hymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development. The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.