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Showing posts from December, 2023

Chromosome Fusion

Chimps have 48 chromosomes, humans only 46. How can they be closely related? Despite the difference in chromosomes, chimp DNA is nevertheless closer to human DNA than it is to gorilla DNA. One Fusion Event First of we need to realise the chromosomes are paired, so this is a jump from 24 pairs to 23 pairs.  What we are talking about is two pairs of chromosomes fusing - joining end to end - to produce one pair. It is like having two sections of string, tying the right end of one to the left end of the other, and ending up with one string approximately as long as the two originals combined. Imagine three consecutive strings: abcdefg + hijklmnop + qrstuvwxyz This is analogous to the ancestor with 24 chromosome pairs, but just looking at three of them. Some mutation happens, and joins two string together. Now there are only two consecutive strings: abcdef@hijklmnop + qrstuvwxyz This is analogous to the ancestor with 23 chromosomepairs, but just looking at two of them. If you look carefu...

Any day now...

 Christians have been predicting the apocalypse is any day now pretty much from its start, Jesus We only have Jesus' words filtered through the hands of the gospel writers, but I strongly suspect he expected the apocalypse to be just days away. Here is Jesus' advise for his followers: Mat 6:25 “For this reason I say to you, [q]do not be worried about your [r]life, as to what you will eat or what you will drink; nor for your body, as to what you will put on. Is life not more than food, and the body more than clothing? 26 Look at the birds of the sky, that they do not sow, nor reap, nor gather crops into barns, and yet your heavenly Father feeds them. Are you not much more important than they? 27 And which of you by worrying can add a single [s]day to his [t]life’s span? 28 And why are you worried about clothing? Notice how the lilies of the field grow; they do not labor nor do they spin thread for cloth, 29 yet I say to you that not even Solomon in all his glory clothed himself ...