At the pH found in cells (about 7.0) , what happens to the carboxyl group on an amino acid?
A) It acts as a base and gains a proton, giving it a positive charge.
B) It acts as an acid and loses a proton, giving it a positive charge.
C) It acts as an acid and loses a proton, giving it a negative charge.
D) It neither gains nor loses a proton and does not have a charge.
Correct Answer:
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Q6: The modified nucleotide inosine (I) found in
Q7: The modified base 2-thiouracil found in tRNA
Q8: The "wobble hypothesis" states that
A) alternative (non-Watson-Crick)
Q9: The frequencies with which different codons are
Q10: At the pH found in cells (about
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Q16: The C-terminus of a protein corresponds to
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