Humans have 23 pairs of chromosomes in each cell. A chromosome is a thread-like structure found in cells and is composed of the genetic material of an organism. The 23rd chromosome pair is unique and determines the sex of the baby.
Females have a pair of X chromosomes, while males have one X and one Y chromosome. The Y chromosome is the foundation of male biology and carries SRY (sex-determining region Y gene) and is responsible for the formation of testes in the embryo. However, a study from Univeristy of Kent, illuminated and expanded on the Y chromosome's gradual dwindling and degeneration.
The Y chromosome, the genetic foundation of maleness, is gradually deteriorating. This decline raises the question of whether men could eventually face extinction. ALSO READ: Are full body checkups actually useless? New study reveals they can't be trusted with dangerous diseases Deteriorating Y chromosomes Y chromosome is the base for male existence.
It is passed from male parent to male offspring. But it is not necessary for basic life functions. X on the other hand has essential life genes, making it indispensable.
X chromosome has 900 protein-coding genes, while Y has only 100 protein-coding genes. Over time, the Y chromosome has a limited gene repertoire, shrivelling and degenerating slowly. However, this has not always been the case.
166 million years ago, the Y chromosome was as gene-rich as the X chromosome. There’s an inherent shortcoming, as the Y chromosome is the odd one ou.