NEET PG DENTAL EXAM

Detailed explanation-1: -The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby’s DNA comes from the mother and half comes from the father.

Detailed explanation-2: -How much DNA do you share with your parents? You inherit around 50% of your DNA from each parent, or around 3700 cM. Note that the percentage won’t be exactly 50%, because there are certain parts of your DNA you only inherit from your mother (such as mitochondrial DNA) or your father (such as the Y chromosome).

Detailed explanation-3: -Typically, the mother’s egg contributes an X chromosome, and the father’s sperm provides either an X or a Y chromosome. A person with an XX pairing of sex chromosomes is biologically female, while a person with an XY pairing is biologically male.

Detailed explanation-4: -Chromosomes come in pairs. Normally, each cell in the human body has 23 pairs of chromosomes (46 total chromosomes). Half come from the mother; the other half come from the father. Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born.