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(a) Why does DNA replication occur in sm...

(a) Why does DNA replication occur in small replication forks and not in its entire length ?
(b) why is DNA replication continuous and discontinuous in a replication fork ?
(c) State the importance of origin of replication in a replication fork.

A

Large opening of the DNA helix

B

Small opening of the DNA helix

C

Tightly coiled part of DNA helix

D

Loosely coiled part of DNA helix

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The correct Answer is:
B
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ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. The strands of DNA, which does not code for anything is referred to as...

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  2. During DNA replication discontinuosly synthesized fragments are later ...

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  3. (a) Why does DNA replication occur in small replication forks and not...

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  4. The DNA dependent DNA polymerase catalyse polymerisation in -

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  5. Main enzyme of DNA replication is -

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  6. The Process of copying genetic information from one stand of DNA nto Y...

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  7. Code in RNA corresponding to AGCT in DNA.

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  8. Which of the following is called adaptor molecule

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  9. Which may be attached with Adenine base in RNA-

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  10. The base sequence of nucleic acid is ACG, GGA, CGA, CCA from this it c...

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  11. RNA synthesis is controlled by-

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  12. In the base sequence of one strand of DNA is CAT TAG CAT CAT GAC wha...

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  13. The process by which DNA of the nucleus passes genetic information of ...

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  14. A sequence of three consecutive bases in a t-RNA molecule which specif...

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  15. t-RNA attach to larger subunit of ribosomes with the help of w...

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  16. In bacteria the codon AUG stands for -

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  17. In three dimensional view the molecule of t - RNA is:

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  18. During transcription, the site of DNA molecule at which RNA polymerase...

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  19. During transcription , the nucleotide sequence of the DNA strand that...

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  20. Which form of RNA has a structure resembling clover leaf ?

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