35) DNA polymerase can catalyze a dehydration synthesis reaction only at the 3\'

Question

35) DNA polymerase can catalyze a dehydration synthesis reaction only at the 3' carbon of 35)- the daughter strand of DNA. This means that A) the antiparallel nature of the parent molecules determine that the leading strand must be grown in fragments away from the fork and the lagging strand is B) since the strands are antiparallel, one strand will grow toward the fork as it opens, C) the leading and lagging strands extend in the 3' -5' direction toward the replication D) Okazaki fragments extend toward the replication fork as the parent strands are synthesized continuously toward the fork. and the other strand will grow in fragments away from the fork. fork as the nucleotide bases are exposed. unzipped by helicase.

Explanation / Answer

35.B since the strands are antiparallel, one strand will grow towards the fork it opens, and other stand will grow in fragment away from the fork.

parental DNA strands are antiparallel but DNA polymerases can synthesise DNA only in 5' to 3' direction.

DNA polymerase can only add nucleotides on 3 ' OH group of the growing strand.

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