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Genetic variation, gene flow, and new species (DNA (Its a bit like and…
Genetic variation, gene flow, and new species
DNA
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You can imagines that with the complexity of organisms there must be a lot go DNA that needs to be read
A lot of words in the genetic code that dictate the orders to build the organism and to make it do all the things that it does
By some estimates, there are about 2 to 3 meters of DNA in each cell of a Human and that is just in a single cell
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If you add up DNA lengths from all the cells in a human, that is a long enough string of DNA to go back and forth from part to the sun 70 times!
So this is a very, very long string
But it is very very, thing string that is one long molecule
With that much DNA packed into each cell, there is actually a way of organising that mess, of preventing tangles
The DNA of each species of organsim is arranged neatly into a species-specific number of packets call Chromosomes
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The Adder's tongue fern has 1,260 Chromosomes
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