KCET · BIOLOGY · STD 12 - 9. Biotechnology: Principles and Processes

Which one of the following statements is not correct about a plasmid?

A It is a circular DNA.
B It has antibiotic of autonomous replication.
C It has the ability of autonomous replication.
D Its DNA is a long as chromosomal DNA.

Verified Solution

Answer & Solution

Correct Answer

(D) Its DNA is a long as chromosomal DNA.

Step-by-step Solution

Detailed explanation

(D) Its DNA is a long as chromosomal DNA.,
Plasmid DNA is very short as compare to chromosomal DNA

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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4. Tail	s. Contains haploid nucleus