Consider following statements I. A soil inhabiting plant bacterium, Agrobacteriumtumefaciens, a path

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9.Biotechnology Principals and Process

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Consider the following statements

$I.$ A soil inhabiting plant bacterium, Agrobacteriumtumefaciens, a pathogen of several dicot plants is able to transfer a piece of $DNA$ known as $T-DNA$

$II.$ The T-DNA causes tumours

$III.$ Tumour formation induced by $Ti-$ plasmid

Which of the statements given above are correct?

$I \;and \;II$

$I\; and \;III$

$II \;and\;III$

$I, II \;and \;III$

Solution

Agrobacterium tumefaciens (soil inhabiting plant bacterium) is a pathogen of several dicot plants. It delivers a piece of $DNA$ known as $'T-DNA'$ in the $Ti-$ plasmid which transforms normal plant cells into tumour cells to produce chemicals against pathogens

Standard 12

Biology

$A$ : Pst I generates single stranded over hanging stretches in $DNA$ after digestion that facilitate ligation.

$R$ : These short extensions can form phosphodiester bonds with their complementary counterparts.

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The$…A…$ are the $DNA$ molecules that can carry a foreign $…B…$ segment into the host cell.

Here $A$ and $B$ refers to

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Definitions/Explanation : Sticky end & Transgene

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An enzyme catalysing the removel of nucleotides from ends of $DNA$ is

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(NEET-2019)

Give scientific reasons : In recombinant $DNA$ technology the use of endonuclease is more proper than exonuclease.

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Solution

Similar Questions

$A$ : Pst I generates single stranded over hanging stretches in $DNA$ after digestion that facilitate ligation. $R$ : These short extensions can form phosphodiester bonds with their complementary counterparts.

The$…A…$ are the $DNA$ molecules that can carry a foreign $…B…$ segment into the host cell. Here $A$ and $B$ refers to

Definitions/Explanation : Sticky end & Transgene

An enzyme catalysing the removel of nucleotides from ends of $DNA$ is

Give scientific reasons : In recombinant $DNA$ technology the use of endonuclease is more proper than exonuclease.

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$A$ : Pst I generates single stranded over hanging stretches in $DNA$ after digestion that facilitate ligation.

$R$ : These short extensions can form phosphodiester bonds with their complementary counterparts.

The$…A…$ are the $DNA$ molecules that can carry a foreign $…B…$ segment into the host cell.

Here $A$ and $B$ refers to