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The enzyme which helps to cut one strand...

The enzyme which helps to cut one strand of DNA duplex to release tension of coiling of two strands is

A

DNA ligase

B

DNA polymerase 1

C

Topoisomerase

D

Helicases or unwindases

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The correct Answer is:
C
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TRUEMAN BIOLOGY-MOLECULAR BASIS OF INHERITANCE-MCQs
  1. Which statement is wrong about DNA?

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  2. Diameter and pitch per turn of helix of 'A' model of DNA is

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  3. The enzyme which helps to cut one strand of DNA duplex to release tens...

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  4. DNA is geneticmaterial was proved by

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  5. Proteins that help to open up DNA helix in front of the replication fo...

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  6. By using proteins from TMV (Tobacco-mosaic virus) and RNA from HRV (Ho...

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  7. The experimental system used in studies on replication of DNA is

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  8. Amount of DNA per diploid cell of man and its length is about

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  9. Central Dogma of modern genetics is

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  10. Eukaryotes differ from prokaryotes in the mechanism of DNA replication...

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  11. DNA replication is:-

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  12. Under the concept of triplet code, the segment of DNA specifying one f...

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  13. When DNA is transferred from a culture of capsulated pneumococcus to a...

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  14. Sum of all the genes is a population is called

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  15. If 50 heavy DNA (N^(15)) molecules are replicated 2 times in N^(14) me...

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  16. The experiment which proved conclusively that during infection only DN...

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  17. There is some permissible latitude in the pairing of the third base in...

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  18. A DNA molecule in E. coli is heavy and labelled with N^(15). Iit is al...

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  19. Taylor experiment on Vicia faba (broad bean) root tips using autoradio...

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  20. if a labelled DNA (with a heavy isotope) replicates in conservative ma...

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