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The enzyme which has polymerising activi...

The enzyme which has polymerising activity in `5' to 3'` direction but exonuclease activity in `3' to 5'` direction only is :-

A

RNA polymerase III

B

DNA polymerase II

C

DNA polymerase I

D

All of these

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The correct Answer is:
B
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MOTION-MOLECULAR BASIS OF INHERITANCE-EXERCISE - 4 (ASSERTION & REASON)
  1. The enzyme which has polymerising activity in 5' to 3' direction but ...

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  2. Assertion :- Adenine and Guanine are substituated purines. Reason : ...

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  3. Assertion :- Normally the genetic code is degenerate. Reason : One a...

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  4. Assertion :- UGG is a chain termination codon. Reason : It does not ...

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  5. Assertion :- There occur 64 codons iin dictionary of genetic code Re...

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  6. Assertion :- Constnt diameter of DNA double helix is 20Å Reason : P...

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  7. Assertion :- In a DNA molecule, A-T rich parts malt before G-C rich pa...

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  8. Assertion :-Wobbling process estabiished the enconomy of t-RNA. Rea...

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  9. Assertion :- Replication and transcription occur in the nucleus but tr...

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  10. Assertion :- Hydrogen bonds between hase pairs it is only mean to stab...

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  11. Assertion :- Unequivocal proof that DNA is the genetic material came f...

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  12. Assertion :- RNA is less stable then DNA. Reason : In RNA'2 - OH gro...

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  13. Assertion :- RNA is best material for transmission of genertic informa...

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  14. Assertion :- In Meselson and Stahl experiment ^(15)NH(4)Cl can be sepa...

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  15. Assertion :- The DNA strand which does not code for anything is referr...

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  16. Assertion :- The split-gene arrangement complicates the definition of ...

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  17. Assertion :- RNA polymerase associates with sigma-factor and rho-facto...

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  18. Assertion :- t RNAs are specific for each amino acid but there are no ...

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  19. Assertion :- Inhibition of transcription is the only method of regula...

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  20. Assertion :- In lac operon, a polycistronic structural gene is regulat...

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  21. Assertion :- The gene I codes for the repressor of the lac operon. R...

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