Answer
nucleotide substitutions accumulation rate = 0.15 substitutions/ million years
there are 30 substitutions
So, solve like this
0.15 substitutions occur in = 1 million years
then 30 substitutions will occur in =0.15 X 30 = 4.5 millions years
this gene family likely originated 4.5 million years ago
incorrect Question 57 0/1.67 pts A gene family has been accumulating nucleotide substitutions at a rate...
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