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  • Assertion (A): Plasmids are types of extrachromosomal DNA that consist of a single-stranded structure. Reason (R): Plasmids ar

Assertion (A): Plasmids are types of extrachromosomal DNA that consist of a single-stranded structure.

Reason (R): Plasmids are exclusively present in eukaryotic cells.

Option: 1

Both A and R are true, and R is the correct explanation of A. 


Option: 2

Both A and R are true, but R is not the correct explanation of A.


Option: 3

 A is true, but R is false.


Option: 4

Both A and R are false.


Answers (1)

best_answer

Plasmids are not exclusively single-stranded extrachromosomal DNA. Plasmids can exist as both single-stranded and double-stranded molecules.

Therefore, the correct answer is  Both A and R are false. Plasmids can be either single-stranded or double-stranded, and they are not exclusively possessed by eukaryotic cells. Plasmids are commonly found in various organisms, including bacteria (prokaryotes) and yeast (eukaryotes). Hence, the correct answer is option 4.

 

Posted by

Divya Prakash Singh

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