A: cDNA libraries are important to scientists | vedclass

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Question

(A) The Assertion is correct because $cDNA$ (complementary $DNA$) libraries are essential in human genomics as they represent only the expressed genes

Vedclass · Accepted Answer

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

Vedclass · Answer

(A) The Assertion is correct because $cDNA$ (complementary $DNA$) libraries are essential in human genomics as they represent only the expressed genes (exons) of an organism,excluding introns.The Reason is also correct because $cDNA$ is synthesized in the laboratory using the enzyme reverse transcriptase,which uses $mRNA$ as a template to create a $DNA$ strand.Since $cDNA$ libraries provide a snapshot of the transcriptome (expressed genes),they are highly valuable for identifying genes and studying gene expression,which directly supports the Assertion. Therefore,the Reason is the correct explanation of the Assertion.

Column-$I$	Column-$II$
$(a)$ $Salmonella$	$(1)$ $Ti$ plasmid
$(b)$ $E. coli$	$(2)$ Thermostable $DNA$ polymerase
$(c)$ $Agrobacterium$ $tumefaciens$	$(3)$ Plasmid for first $r-DNA$
$(d)$ $Thermus$ $aquaticus$	$(4)$ $EcoR I$

$A$: $cDNA$ libraries are important to scientists in human genomics.
$R$: $cDNA$ is a synthetic type of $DNA$ generated from $mRNA$.

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$A$: $cDNA$ libraries are important to scientists in human genomics.$R$: $cDNA$ is a synthetic type of $DNA$ generated from $mRNA$.