I. Ori also controls copy number of thelinked DNA . II. If a foreign DNA ligates at Bam Hl site ofte

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9.Biotechnology Principals and Process

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$I.$ Ori also controls the copy number of thelinked $DNA$.

$II.$ If a foreign $DNA$ ligates at the Bam Hl site oftetracycline resistance gene in the vector $pBR322$, the recombinant plasmid loses the tetracycline resistance due to insertion offoreign $DNA$.

Choose regarding the above statements.

A

$I$ is true, $II$ is false

B

$II$ is true, $I$ is false

C

Both are true

D

Both are false

Solution

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Standard 12

Biology

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Consider the following statements

$I.$ Recombinant $DNA$ technology popularly known as genetic engineering is a stream of biotechnology which deals with the manipulation of genetic material by man in vitro

$II. pBR322$ is the first artificial cloning vector developed in $1977$ by Boliver and Rodriquez from $E$. coli plasmid

$III.$ Restriction enzymes belong to a class of enzymes called nucleases

Which of the statements given above are correct?

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$I.$ restriction enzymes.

$II.$ Polymerase enzymes.

$III.$ Host organism ligases.

$IV.$ vectors.

$V.$ Host organisms.

select the correct option.

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The characteristics of a molecular probe are

$I.$ very long molecule

$II.$ double-stranded

$III. DNA$ or $RNA$

$IV$. complementary to a part of desired gene

The correct pair is

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Which of the following enzymes are used to join bits of $DNA$?

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