Question

Why womens are called as half population?

Answer 1

HEY MATE HERE IS YOUR ANSWER....



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The basic mechanism for gender determination in all mammals (including humans) is simple: you have two sex chromosomes, X and Y.  Males are XY, females are XX.  When they make gametes (sperm and egg) during meiosis, the cells divide and get only 1 chromosome each; an X in each egg and either an X or a Y in the sperm, equally.  When the egg and sperm meet, you get a new XX pair or a new XY pair, so the result will be 50% XY and 50% XX.  Nature doesn't need to "know" anything; it's a simple mechanism. (Other vertebrates have a similar, but not identical, mechanism with more variations.)

Now, there are a million variants on that. In humans, you get slightly more females than males because females survive slightly better in the womb. (Nobody is entirely sure why, but the spare X chromosome may help the fetus survive even when there are genetic errors in one chromosome.)  Y sperm may swim a bit faster than X sperm (due to being a tiny bit lighter: the Y chromosome is substantially smaller than the X chromosome), tipping the balance the other way.  But in general, it's around 50-50.

There are documented instances where male or female vertebrate offspring are spontaneously aborted depending on the food supply: little food means being conservative (making females, which are nearly guaranteed to reproduce, as long as there's a single male around somewhere), while plenty means making more males (who usually have to compete with other males, and are less likely to reproduce, but if you win the genetic lottery your offspring may reproduce a lot).

Other species have REALLY wild variations.  In bees and other "haplodiploid" organisms, there aren't really any sex chromosomes.  Males will develop from unfertilized eggs; they have only 16 chromosomes, entirely from the mother and not at all from the father.   Females have a full complement of chromosomes, but due to the way they're raised they are infertile, except for the queen.  The queen can lay either male or female eggs, according to outside conditions.

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HOPE IT HELPS YOU MATE......



BY GURVEER...
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HAVE A NICE DAY...

Answer 2

Woman's are called as half population because the population of women is decreasing compared.