The ENCODE Project's goal was to identify all functional DNA sequences within the human genome. Which of the following is a finding from ENCODE?
A) ENCODE was able to classify that a large part of the human genome is "Junk DNA."
B) ENCODE was able to determine that each enhancer exerts its regulatory function on only a single gene.
C) ENCODE was able to determine that 75% of the genome is transcribed in at least one cell type.
D) ENCODE determined that approximately 25% of the human genome has some sort of biochemical function.
E) ENCODE determined that approximately 15% of the human genome codes for a protein.
Answer: C
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A complication of molecular clock studies is that
A) DNA and proteins appeared in life at about the same time. B) genes mutate at different rates. C) DNA is not often preserved in fossils. D) some species are more highly evolved than others.
Catabolism
What will be an ideal response?
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A) population size B) mutation rate C) genetic heterogeneity D) sexual/asexual reproductive ratio