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BotanyNEET 2024Tools of recombinant DNA technology

Biotechnology: Principles and Processes

What is the fate of a piece of DNA carrying only the gene of interest which is transferred into an alien organism?

A. The piece of DNA would be able to multiply itself independently in the progeny cells of the organism.

B. It may get integrated into the genome of the recipient.

C. It may multiply and be inherited along with the host DNA.

D. The alien piece of DNA is not an integral part of the chromosome.

E. It shows the ability to replicate.

Choose the correct answer from the options given below:

  1. A.D and E only
  2. B.B and C only✓
  3. C.A and E only
  4. D.A and B only

Solution

A DNA fragment that carries only the gene of interest has no origin of replication, so it cannot multiply on its own (A, D and E are wrong). It may integrate into the host genome and then be copied and inherited with the host DNA — B and C.

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