試題詳解

33. The enzyme telomerase uses mechanisms that involve:
(A) Repeating sequences at the telomeres.
(B) Having RNA oligonucleotides to act as templates as part of the enzyme.
(C) Allowing the end of the chromosome to get a little shorter each time a cell divides.
(D) Both repeating sequences at the end of chromosomes and RNA oligonucleotides to act as templates as part of the enzyme.