試題詳解

49. 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.
(E) All of the above.