Molecular biology 2 Views 1 Answers
Topoisomerase: – A. Separates the DNA strands at the origin – B. Keeps the single-stranded DNA regions from coming back together – C. Re-coils the DNA into a helix after replication is complete – D. Breaks DNA backbone to remove tension produced by the helicase – E. Breaks hydrogen bonds between DNA and the RNA primers
Topoisomerase:
– A. Separates the DNA strands at the origin
– B. Keeps the single-stranded DNA regions from coming back together
– C. Re-coils the DNA into a helix after replication is complete
– D. Breaks DNA backbone to remove tension produced by the helicase
– E. Breaks hydrogen bonds between DNA and the RNA primers
Answered
D. Topoisomerase breaks the DNA backbone to relieve supercoiling tension generated by helicase unwinding the DNA strands. This is crucial to prevent strand breakage during replication.
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BNO Team