Female Is A Fact
http://www.americanthinker.com/articles/2021/05/female_is_a_fact.html
May 30, 2021 By Anony Mee
Humans have 23 pairs (46 total) of chromosomes in each cell. Gametes, the sperm and egg cells, each have 23 chromosomes. When we open a biology textbook, we see them arranged from largest to smallest pairs. One of each pair is inherited from the father and one from the mother. The functions of some genes are well-known, and some abnormalities yield predictable results. Genetic research is robust.
Chromosome 1, the largest, has 249 million base pairs and constitutes about 8% of total DNA. Chromosome 10 has more than 133 million base pairs. Chromosome 22 has about 51 million.
Chromosome X -- all of us have one from our mothers – has 155 million base pairs and makes up about 5% of DNA in the body. Females have two X chromosomes in each cell, one of which is inactivated during gestation. In some cells, the inactivated X chromosome will be the one from the father, in others the one from the mother. Interesting, isn’t it?
Chromosome Y – which only males have – has around 59 million base pairs and is responsible largely for male sex differentiation. In males, it comprises about 2% of DNA.
Our biological gender is determined at conception, depending on whether the sperm that fertilizes the egg contains an X or a Y chromosome. Everything biological about us is determined at that point, and only awaits the appropriate time to be expressed.
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