Question

What is the fate of a piece of DNA carrying only gene of interest which is transfered in to 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 multiple and be inherited along with the host DNA.
D. The alien piece of DNA is not an integral part of chromasame.
E. It shows ability to replicate.
Choose the correct answer from the options given below:

• A. A and B only
• B. D and E only
• C. B and C only
• D. A and E only

Answer 1

The Correct Option is C

Step 1:

• A When a gene-containing DNA fragment is introduced into a foreign organism, its subsequent fate can be:
• B Integration into the recipient organism's genome. This is a frequent mode of gene transfer during procedures like transfection or transformation.
• C Replication and inheritance with the host DNA upon integration into the host genome or formation of a plasmid-like structure.

Step 2: The provided alternatives are incorrect for the following reasons:

• A. Independent DNA replication is not guaranteed unless the DNA is a plasmid or specific viral vector types.
• D. Integration of DNA results in its incorporation as an essential component of the chromosome.
• E. The capacity for replication is contingent upon the DNA forming an independent plasmid or becoming integrated.

Consequently, the accurate response is (3) B and C exclusively.