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Restriction endonucleases:...

Restriction endonucleases:

A

Are present in mammalion cells for degradation of DNA when the cells dies

B

Are used in genetic engineering for ligating two DNA molecules

C

Are used for invitro DNA syntnesis

D

Are synthesized by bacteria as part of their defense mechanism

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The correct Answer is:
D
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Mention one significant function of the following: Restriction endonuclease

Assertion (A) : Restriction endonucleases recognise short pallindromic sequence and cut at specific sites Reason (R) : When a restriction endonuclease acts on a pallindrome, it cleaves both the strands of DNA molecule.

Restriction endonuclease is used in

Restriction endonuclease cuts

Restriction endonuclease is employed for cutting

Restriction endonuclease is used in

Which of the following is a restriction endonuclease

GAATTC is a recognition site for the restriction endonuclease

Term 'Restriction' in Restriction endonuclease enzyme refers to

Which of the following bacteria is not a source of restriction endonuclease

AAKASH SERIES-BIOMOLECULES-EXERCISE - III (Previous AIPMT/NEET Questions)
  1. Which one of the following is the correct matching of a vitamin, its n...

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

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  3. Restriction endonucleases:

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  4. The maximum growth rate occurs in

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  5. The following ratio is generally constant for a given species

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

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  7. During replication of a bacterial chromosome DNA synthesis stars from ...

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  8. During translation initiation in prokaryotes , a GTP molecule is neede...

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  9. Which one of the following concerns photophosphorylation ?

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  10. Which one of the following triplet codes , is correctly matched with i...

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  11. Which one of the following pairs is not correctly matched?

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  12. During transcription , the DNA site at which RNA polymerase binds is c...

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  13. Which one of the following pairs correctly matches a hormone with a di...

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  14. Which is a reducing sugar?

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  15. Change in the sequence of nucleotide in DNA is called as

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  16. Adrenaline directly affects

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  17. Sequence of which of the following is used to know the phylogeny : -

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  18. In a DNA percentage of thymine is 20 . What is the percentage of guan...

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  19. Which of the following enzymes are used to join bits of DNA

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  20. Lipids are insoluble in water, because lipids molecules are

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