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Biotechnology and Its Applications question

2024 · Q81
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Biotechnology and Its Applications question

2024 · Q81

NEETBiologyBiotechnology and Its ApplicationsMCQ+4 / −1

The following diagram showing restriction sites in E. coli cloning vector pBR322. Find the role of ‘X’ and ‘Y’ genes :

NEET 2024 Biology - Biotechnology and It's Applications Question 3 English

  1. A
    The gene ‘X’ is responsible for resistance to antibiotics and ‘Y’ for protein involved in the replication of Plasmid.
  2. B
    The gene ‘X’ is responsible for controlling the copy number of the linked DNA and ‘Y’ for protein involved in the replication of Plasmid.
  3. C
    The gene ‘X’ is for protein involved in replication of Plasmid and ‘Y’ for resistance to antibiotics.
  4. D
    Gene ’X’ is responsible for recognitions sites and ‘Y’ is responsible for antibiotic resistance.
View written solutionFree

Correct answer: B

Correct answer is option (2), because

'X' in the given diagram is ori while 'Y' is rop.

'X' which is ori is responsible for controlling the copy number of the linked DNA and 'Y' which is rop codes for protein involved in the replication of plasmid.

Options (1), (3) and (4) are incorrect as 'X' and 'Y' are not related to these functions.

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