First restriction enzyme to be isolated and characterised was

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9.Biotechnology Principals and Process

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The first restriction enzyme to be isolated and characterised was

A

$EcoRI$

B

$BamHI$

C

$Hind \;III$

D

$Hind \;II$

Solution

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Standard 12

Biology

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Similar Questions

Given below are two statements : one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$ :
When a particular restriction enzyme cuts strand of DNA, overhanging stretches or sticky ends are formed.
Reason $(R)$:
Some restriction enzymes cut the strand of DNA a little away from the centre of palindromic site.
In the light of the above statements, choose the correct answer from the options given below :

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(NEET-2022)

Consider the following statements

$I.$ In microinjection method foreign $DNA$ is directly injected into the nucleus of animal cell or plant cell by using micro needles or micro pipettes

$II.$ Microinjection method is used in oocytes, eggs and embryo

$III.$ Electroporation is the formation of temporary pores in the plasma membrane of host cell by using lysozyme or calcium chloride

$IV.$ In chemical mediated gene transfer method certain chemicals such as $\mathrm{CO}_{2}$ help foreign $DNA$ to enter the host cell

Which of the statements given above are correct?

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It increases the efficiency with which $DNA$ enters the bacterium through pores in its cell wall.

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In gel electrophoresis, the $DNA$ fragmentsseparate according to ……..

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Match the columns :

Column – $I$ Column – $II$

$(a)$ Ethidium Bromide
$(i)$ Agrobacterium

$(b)$ Ti plasmid $(ii)$ Tetracycline

$(c)$ $PvuI$ $(iii)$ Gel electrophoresis

$(iv)$ Ampicilin

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