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Assertion : Besides HindII, today we kno...

Assertion : Besides HindII, today we know more than 900 restriction enzymes that have been isolated from over 230 strains of bacteria
Reason :Each restriction enzyme recognises different recognition sequence

A

If both assertion and reason are true and the reason is the correct explanation of the assertion

B

If both assertion and reason are true but reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
B
`**` Beside Hind-II, today we know more than 900 restriction enzymes that have been isolated form over 230 strains fo bacteria.
`**` Each restriction enzyme recognise different recognition sequence
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More than 900 restriction enzymes have been isolated from

Approximately how many restriction enzymes have been isolated from the different (over 230) strains of bacteria:

Today we know more than _______that have been isolated from over_________of bacteria each of which recognize difference recognition sequences.

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Correct statement about restriction endonuclease. (I) It is the enzyme which cuts DNA at a particular point. (II) The first restriction endonuclease was Hindll. (III) Overall,900 restriction enzymes have been isolated from about 200 strains. (IV) Each restriction endonuclease recognizes a specific palindromic sequence.

Assertion : Restriction enzymes Hin and Hpa are produced from two different genera of bacteria. Reason : Hin is produced from Haemophilus while Hpa is produced from Hematococcus.

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