Really hard biology questions?

mason_wills

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The shared genetic code of all life on Earth is evidence that ______.
A) DNA replication is error-free
B) bacterial cells arose earlier than eukaryotic cells
C) the genetic code arose relatively late in the history of life on Earth
D) life was created by a deity
E) all life shares a common ancestry

What is the smallest number of nucleotides that must be added or subtracted to alter the reading frame?
A) two
B) five
C) three
D) four
E) one
 
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