Question
What is the fate of a piece of DNA carrying only 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 chromosome.
E. It shows ability to replicate.
Choose the correct answer from the options given below:
Options
Solution
Sol. [Key Concept: Inheritance of introduced DNA]
A DNA fragment containing only the gene of interest cannot be assumed to replicate autonomously; it needs an appropriate replication context. It may integrate into the recipient chromosome and then replicate and pass to progeny with host DNA. Thus B and C are correct: option (1).
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