BS 161 Final Exam Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) What is the first thing to occur in DNA replication?the strands of the DNA double helix are separated the extension of DNA from the 3′ end of the RNA primer the synthesis of a short RNA primer the removal of the RNA primer, which is replaced by DNA
- Correct Answers ✅a
On which strand are new nucleotides being added in the same direction as the replication fork is opening?the lagging strand On both strands, DNA synthesis is proceeding in the same direction as the replication fork the leading strand - Correct Answers ✅c 1 / 4
BS 161 Final Exam Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) On which strand is DNA synthesis discontinuous, occurring in fragments that are later connected?the leading strand the lagging strand Both strands synthesize DNA in fragments. - Correct Answers ✅b Which statement about DNA replication is true?When DNA polymerase reaches a primer from prior DNA synthesis, the primer is removed and replaced with DNA The lagging strand requires an RNA primer to initiate DNA synthesis, whereas the leading strand does not require an RNA primer On the leading strand, new DNA is added to the 3′ end of the growing strand, whereas on the lagging strand, new DNA is added to the 5′ end 2 / 4
BS 161 Final Exam Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) DNA polymerase performs DNA synthesis on the leading strand, and RNA polymerase performs synthesis on the lagging strand. - Correct Answers ✅a RNA primase lays down an RNA primer to start DNA replication. If a mutation occurs that blocks the function of RNA primase, which synthesis of which strand is affected, and why?The leading strand is affected because it leads DNA synthesis.The lagging strand is affected because it requires an RNA primer for each Okazaki fragment produced.Both strands are affected because all DNA polymerase can only add new nucleotides to a 3′-OH present at the end of the RNA primer. - Correct Answers ✅c Each DNA parent strand within a replication bubble acts
as a template strand that produces: 3 / 4
BS 161 Final Exam Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) only lagging strands.two leading strands or two lagging strands.one leading strand and one lagging strand.either a leading strand or a lagging strand.only leading strands. - Correct Answers ✅c Telomerase is fully active in _____ and _____ cells, but almost completely inactive in _____ cells.germ; stem; somatic stem; blood; germ somatic; blood; germ germ; somatic; stem
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