RNA primers are necessary in DNA synthesis because O A. primers mark the sites where helicase has to unwind the DNA. O B. the DNA polymerase enzyme can catalyze the addition of deoxyribonucleotides only onto the 3' (-OH) end of an existing strand. OC. RNA primase is the first enzyme in the replication complex. O D. they are the source of nucleotides for DNA polymerases. OE. DNA polymerase is unable to initiate replication without an origin.

Biology Today and Tomorrow without Physiology (MindTap Course List)
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Author:Cecie Starr, Christine Evers, Lisa Starr
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Chapter6: Dna Structure And Function
Section: Chapter Questions
Problem 11SQ: Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from...
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RNA primers are necessary in DNA synthesis because
OA. primers mark the sites where helicase has to unwind the DNA.
OB. the DNA polymerase enzyme can catalyze the addition of deoxyribonucleotides only onto the 3' (-OH) end of an existing strand.
O C. RNA primase is the first enzyme in the replication complex.
D. they are the source of nucleotides for DNA polymerases.
00
O E. DNA polymerase is unable to initiate replication without an origin.
5 p
Transcribed Image Text:RNA primers are necessary in DNA synthesis because OA. primers mark the sites where helicase has to unwind the DNA. OB. the DNA polymerase enzyme can catalyze the addition of deoxyribonucleotides only onto the 3' (-OH) end of an existing strand. O C. RNA primase is the first enzyme in the replication complex. D. they are the source of nucleotides for DNA polymerases. 00 O E. DNA polymerase is unable to initiate replication without an origin. 5 p
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