(A) The process of copying genetic information from one strand of the $DNA$ into $RNA$ is termed as transcription.In this process,the enzyme $RNA$ pol

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$m-RNA$ is synthesized by the genes of a $DNA$ segment.

(A) The process of copying genetic information from one strand of the $DNA$ into $RNA$ is termed as transcription.In this process,the enzyme $RNA$ polymerase catalyzes the polymerization of ribonucleotides based on the template provided by the $DNA$ segment (gene).Therefore,$m-RNA$ is synthesized from the genetic information present in the $DNA$ segment.

Class 12 Biology Molecular Basis of Inheritance Transcription

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How is $m-RNA$ synthesized?

A
$m-RNA$ is synthesized by the genes of a $DNA$ segment.
B
$m-RNA$ is synthesized by $t-RNA$ with the help of $DNA$.
C
$m-RNA$ is synthesized by $t-RNA$.
D
$m-RNA$ is synthesized by $t-RNA$ and $r-RNA$.

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Molecular Basis of Inheritance

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In which of the following places is messenger $RNA$ $(mRNA)$ formed in a living cell?

Medium

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Match Column-$I$ with Column-$II$ and select the correct answer from the options given below.
Column-$I$ Column-$II$
$i$. Cistron $a$. Addition of methylated $GTP$ to $5'$-end of $hnRNA$.
$ii$. Exon $b$. Non-coding sequences which are removed by splicing.
$iii$. Intron $c$. Segment of $DNA$ coding for a polypeptide.
$iv$. Capping $d$. Coding sequences which appear in processed $mRNA$.

Column-$I$	Column-$II$
$i$. Cistron	$a$. Addition of methylated $GTP$ to $5'$-end of $hnRNA$.
$ii$. Exon	$b$. Non-coding sequences which are removed by splicing.
$iii$. Intron	$c$. Segment of $DNA$ coding for a polypeptide.
$iv$. Capping	$d$. Coding sequences which appear in processed $mRNA$.

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