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 piece of DNA carrying a gene of interest is transferred into an alien organism, it can have the following possible fates:
• B The DNA may get integrated into the genome of the recipient organism. This is a common mechanism for gene transfer, particularly in processes such as transfection or transformation.
• C The piece of DNA may multiply and be inherited along with the host DNA if it integrates into the host’s genome or forms a plasmid-like structure.

Step 2: The other options are incorrect because:

• A. The DNA may not necessarily multiply itself independently unless it is a plasmid or certain types of viral vectors.
• D. If the DNA integrates, it becomes an integral part of the chromosome.
• E. The ability to replicate depends on whether the DNA forms an independent plasmid or is integrated.

Thus, the correct answer is (3) B and C only.