試題詳解

21. During DNA replication, the single-strand DNA-binding (SSB) proteins
(A) are generally found more on the leading strand than the lagging strand.
(B) bind cooperatively to single-stranded DNA and cover the bases to prevent base-pairing.
(C) prevent the folding of the single-stranded DNA.
(D) bind cooperatively to short hairpin helices that readily form in the single-stranded DNA.
(E) All of the above.