Comic 133 - Design..

15th Jun 2007, 10:42 AM
Average Rating: 5 (6 votes)
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AlpineBob 4th Jul 2013, 4:41 PM edit delete reply
"ascendants" is not a good word for this. I think you mean "ancestors".
Centcomm 4th Jul 2013, 4:53 PM edit delete reply

actually it was chosen :D (( ASCENDANTS. Those from whom a person is descended, or from whom he derives his birth, however remote they may be.
2. Every one has two ascendants at the first degree, his father and mother; four at the second degree, his paternal grandfather and grandmother, and his maternal grandfather and grandmother; eight at the third. Thus in going up we ascend by various lines which fork at every generation. By this progress sixteen ascendants are found at the fourth degree; thirty-two, at the fifth sixty-four, at the sixth; one hundred and twenty-eight at the seventh, and so on; by this progressive increase, a person has at the twenty-fifth generation, thirty-three millions five hundred and fifty-four thousand, four hundred and thirty-two ascendant's. But as many of the ascendants of a person have descended from the same ancestor, the lines which were forked, reunite to the first common ancestor, from whom the other descends; and this multiplication thus frequently interrupted by the common ancestors, may be reduced to a few persons. Vide Line. ))
Computant 7th Aug 2016, 2:39 PM edit delete reply
You start with 46 chromosomes, 23 from each of your first degree ascendants, around 11 or 12 from second degree, about 6 from third, about 3 from forth, 1-2 from fifth, and after that you start seeing ascendants who did not contribute genetic material.
Granted, there may be a little genetic drift from one chromosome to another, but that is effectively just a different form of mutation.
Computant 7th Aug 2016, 2:41 PM edit delete reply
OK, I guess titles don't show, I was pointing out that you can have a max of 46 effective ascendants, even if you were the product of thirty-three million distinct people, for most of them their genes don't survive in you...
antrik 18th Apr 2017, 9:59 PM edit delete reply
Recent research shows that chromosome splicing is actually way more common than previously thought -- so it's indeed not every chromosome coming either from one or the other parent.

What's more, it is a well-known fact that not all genetic information is contained in the main chromosome set. You also get mitochondrial DNA for example. Also, it turns out that other substances propagated from the parents can decide about genes being active or not -- so the properties you inherit are not determined by DNA alone.
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