Question

which organ of our body doesnt grow till our death?

Answer 1

Harmful genes that cause Huntington’s disease—a disease that attacks the neurons in the brain—only show up between ages 30 to 50, in some cases after the birth of offspring. There are many other diseases that accumulate later on in life, dementia being the main one. In 1952, in trying to explain this, Peter Brian Medawar suggested that older adults accumulate mutations and become a "genetic dustbin"

In Medawar's theory there is no advantage to aging, nor are there any benefits for older people to live. Aging is simply the result of declining functions before death. This biological interpretation proved popular.

To explain aging, another biologist, George Williams in 1957 came up the "antagonistic pleiotropy hypothesis" (named by Michael Rose in 1982). Pleiotropy is the phenomenon where one or a few genes control more than one trait. The antagonism part comes from the negative effect that emerges later on in life. As an example, testosterone in men might result in an attractive muscular body in youth, masculine features such a deep voice and facial hair, but it also increases the likelihood of prostate cancer in older age, hence the antagonistic part of the pleiotropy. Although it is the positive aspects of the pleiotropic gene that is selected for in natural selection, the antagonistic aspect also sneaks into the gene pool

Answer 2

OSSICULAR CHAIN.....