28th November 2019

jonfwilkins
14

What is the difference between male and female DNA?

The genetic difference between males and females resides in that last chromosome pair, the sex chromosomes. At the sex chromosomes, women have two X chromosomes, while men have one X chromosome and one Y chromosome. So, if you have a discrete source of your DNA sample, like a hair, you could do a couple of things.

Can you tell a person's age by their DNA?

Scientists used to think if they could measure the length of a person's telomere, they would be able to tell their age. After all, the more times a cell divides, the shorter its DNA will be. And the older you are, the more times your cells will have divided. Unfortunately, it wasn't so simple.
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