Assertion : Plasmids are extrachromosomal DNA | vedclass

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Question

(A) Plasmids are small,circular,double-stranded $DNA$ molecules that are distinct from a cell's chromosomal $DNA$.They are naturally found in bacteria

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) Plasmids are small,circular,double-stranded $DNA$ molecules that are distinct from a cell's chromosomal $DNA$.They are naturally found in bacteria and some eukaryotes.Because they can replicate independently and carry specific genes,they are widely used as vectors in recombinant $DNA$ technology (genetic engineering) to transfer foreign genes into host cells.Both the assertion and the reason are correct,and the reason explains why plasmids are significant in the context of their biological nature and utility.

Assertion : Plasmids are extrachromosomal $DNA$.
Reason : Plasmids are found in bacteria and are useful in genetic engineering.

Similar Questions

Select the correct option for the $Ti$ plasmid.

Which enzyme is used to synthesize a $cDNA$ probe from a messenger $RNA$ molecule?

Identify the incorrect statement regarding restriction enzymes.

Identify the $DNA$ segment which is not a palindromic sequence.

$A$ : $Pst I$ generates single-stranded overhanging stretches in $DNA$ after digestion that facilitate ligation.
$R$ : These short extensions can form hydrogen bonds with their complementary counterparts,which are then sealed by $DNA$ ligase to form phosphodiester bonds.

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Assertion : Plasmids are extrachromosomal $DNA$.Reason : Plasmids are found in bacteria and are useful in genetic engineering.