By Yolanda Smith, BPharm. Thymine, which is often abbreviated to T or Thy, can also be referred to as 5-methyluracil. It is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C).These bases are the building blocks of DNA and life form on earth.t is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C). These bases are the building blocks of DNA and life form on earth.
In humans, the pineal gland controls our biorhythms and works in conjunction with the hypothalamus gland to control our thirst, hunger, sexual desire and biological clock that is associated with the aging process.he high melatonin levels in children are believed to inhibit their sexual development until melatonin levels decrease when puberty begins. Melatonin is created when the amino acid tryptophan is converted into the neurotransmitter serotonin, which is in turn synthesized into melatonin.
Lesson Summary. Let's review. The pineal gland is a tiny endocrine gland found in the brain. It produces and secretes the hormone melatonin, which is a hormone that helps regulate biological rhythms such as sleep and wake cycles.The secretion of melatonin is inhibited by light and triggered by darkness.hile the full function of the pineal gland is still somewhat mysterious, we do know that it secretes the hormone melatonin. Melatonin is a hormone from the pineal gland that helps regulate biological rhythms such as sleep and wake cycles.