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The DNA dependent DNA polymerase catalys...

The DNA dependent DNA polymerase catalyse polymerisation in -

A

`3'to5'` direction

B

`5'to3'` direction

C

Depend on the nature of template strand

D

both (A) & (B)

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The correct Answer is:
B
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DNA polymerases catalyse polymerisation of / in

The replication process involves the following steps: (I) The enzyme DNA-dependent DNA poly merases catalyse the polymerisation of DNA strand. (II) The lagging strand is synthesized in frag ments known as Okazaki fragments, which are later joined by the enzyme DNA Ligase. (III) The origin of replication serves as the recognition site for DNA polymerase and also it provides the site for attachment of RNA primer. (IV)The structural gene coding for a partic ular protein is flanked by the promoter and terminator. Choose the correct option:

The enzyme DNA dependent RNA polymerase catalyses the polymerisation reaction in ________ direction .

RNA polymerase I catalyses :

DNA polymerase III catalyses :

Assertion :- On template 5' to 3' DNA replicate in discontinuous manner. Reason : DNA polymerase catalyse polymerisation only is one direction that is 5' to 3'.

DNA -dependent RNA polymerase catalyzes transcription on one strand of the DNA which is called the

MOTION-MOLECULAR BASIS OF INHERITANCE-EXERCISE - 1
  1. During DNA replication discontinuosly synthesized fragments are later ...

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  2. Replication fork is -

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  3. The DNA dependent DNA polymerase catalyse polymerisation in -

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  4. Main enzyme of DNA replication is -

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  5. Code in RNA corresponding to AGCT in DNA.

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  6. Which of the following is called adaptor molecule

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

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

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  9. RNA synthesis is controlled by-

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  10. In the base sequence of one starand of DNA is CAT, TAG, CAT , CAT, GAC...

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

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

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

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  14. In bacteria the codon AUG stands for -

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

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  16. During transcription, DNA site at which RNA polymerase binds is called

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  17. During transcription, if the nuncleotide sequence of the DNA strand th...

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

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  19. Which one of the following makes use of RNA as a template to synthesiz...

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  20. During transcription holoenzyme RNA polymerase binds to a DNA sequence...

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