A pyrimidine base found in DNA, pairing with adenine through two hydrogen bonds.

A nitrogenous base in DNA that pairs with adenine; one of the four bases that make up the genetic code.

A covalent bond formed between two adjacent thymine bases in DNA, often caused by ultraviolet light, leading to mutations.

A gland located in the chest that plays a central role in the immune system by promoting the development of…

A gland located in the neck that produces thyroid hormones, which regulate metabolism and growth.

An endocrine gland in the neck that produces hormones, including thyroxine, which regulate the body’s metabolic rate.

A hormone produced by the pituitary gland that stimulates the thyroid gland to produce thyroid hormones.

A hormone produced by the thyroid gland that regulates metabolism, energy generation, and growth.

The bone in the lower leg, also known as the shin bone, which bears the weight and connects the knee…

The main lymphatic vessel that drains lymph from the lower body and left side of the upper body into the…