... Surprisingly,1
Or perhaps not.
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... it,2
By definition. It's new.
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... nucleotides.3
Why three when there are four nucleotides? Because if the nucleotide at a certain position is an A, for example, it can only change to a C, G, or T.
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... large.4
If a protein consists of 400 amino acids, that's 1200 nucleotides. There are different sequences that are 1200 nucleotides long.
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... positions,5
Since the mutation rate we're talking about applies to individual nucleotide positions.
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... extensively6
That mean's they've made it more complicated.
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... understand.7
It's the concepts that get tricky, not the algebra, or at least that's what I think.
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