What could be a probable fate of the segment of the DNA strand encircled in red? Polypeptides can now be translated from the encircled region as the two antiparrallel strands separate. The encircled DNA region can now be used as a template for transcription. it will relax right away on its own so that helicase can separate the two complementary strands with much ease If the encircled region will not be relaxed by another enzyme, it will experience supercoiling and will most likely break.

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter28: Dna Metabolism: Replication, Recombination, And Repair
Section: Chapter Questions
Problem 11P
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What could be a probable fate of the segment of the DNA strand encircled in red?

  • Polypeptides can now be translated from the encircled region as the two antiparrallel strands separate.
  • The encircled DNA region can now be used as a template for transcription.
  • it will relax right away on its own so that helicase can separate the two complementary strands with much ease
  • If the encircled region will not be relaxed by another enzyme, it will experience supercoiling and will most likely break.
Replication fork
3'
Helicase
5'
ATP
3'
ADP + P;
Helicase direction
5'
(а)
(b)
Ernesto Arias-Palomo and James Berger,
Johns Hopkins School of Medicine
Transcribed Image Text:Replication fork 3' Helicase 5' ATP 3' ADP + P; Helicase direction 5' (а) (b) Ernesto Arias-Palomo and James Berger, Johns Hopkins School of Medicine
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