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Restriction endonuclease...

Restriction endonuclease

A

Cuts the DNA molecule randomly

B

Cuts the DNA molecule at specific sites

C

Restricts the synthesis of DNA inside the nucleus

D

Synthesizes DNA

Text Solution

Verified by Experts

The correct Answer is:
B
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Explore conceptually related problems

Read the given statements and select the correct option, Statement 1 : Restriction endonuclease enzymes recognise a specific palindromic nucleotide sequence in the DNA Statement 2: Restriction endonuclease enzymes are called as molecular scissors or biological scissors.

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.

Select the correct option regarding restriction endonuclease P. 900 restriction enzyme have been isolated from over 200 strains. Q. The first restriction exonuclease was Hind II. R. Each restriction endonuclease recognises same palindromic sequence .

ALLEN-BIOTECHNOLOGY AND MICROBES IN HUMAN WELFARE-Exercise II
  1. Two microbes found to be very useful in genetic engineering are

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  2. Restriction endonuclease

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  3. Golden rice is a promising transgenic crop. When released for cultivat...

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  4. A genetically engineered micro-organism useq successfully in bioremedi...

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  5. Cry 1 endotoxins obtins obtained from Bacillus thuringiensis are...

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  6. Human insulin is being commercially produced from a transgenic species...

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  7. Main objective of production/use of herbicide resistant GM crops is to

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  8. A transgenic food crop, which may help in solving the problem of night...

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  9. Which one of the following is commonly used in transfer of foreign DNA...

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  10. Polyethylene glycol method is used for

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  11. Transgenic plants are the ones

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  12. The bacterium Bacillus thuringiensis is widely used in contemporary bi...

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  13. What is true about Bt toxin?

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  14. The genetic defect-Adenosine Deaminase deficiency may be cured permane...

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  15. Which one of the following is used as vector for cloning genes into hi...

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  16. Restriction endonucleases are enzymes which

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  17. Which one of the following palindromic base sequences in DNA can be ea...

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  18. An improved variety of transgenic basmati rice

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  19. DNA or RNA segment tagged with a radioactive molecule is called

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  20. Genetic engineering has been successfully used for producing

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