Select the $CORRECT$ statement from the following.

  • A
    In a $DNA$ molecule,the two strands are anti-parallel and non-complementary.
  • B
    The $rRNA$ is always present in variously folded form.
  • C
    During $DNA$ replication,the leading strand is formed in $3' \rightarrow 5'$ direction,while the lagging strand is formed in $5' \rightarrow 3'$ direction.
  • D
    The $mRNA$ molecule may be straight or coiled upon itself to form a hairpin-like shape.

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Similar Questions

Match the scientist of Column $I$ with their contributions in Column $II$.
Column $I$Column $II$
$A$. Griffith$i$. Lac operon
$B$. Jacob and Monod$ii$. $DNA$ is the genetic material
$C$. Meselson and Stahl$iii$. Transforming principle
$D$. Hershey and Chase$iv$. $DNA$ replicates semiconservatively

Differentiate between the following:
$(a)$ Repetitive $DNA$ and Satellite $DNA$
$(b)$ $mRNA$ and $tRNA$
$(c)$ Template strand and Coding strand

$DNA$ generally acts as a template for the synthesis of:

Study the given figure of a nucleosome and select the option that correctly identifies the parts $A, B$ and $C$.

Segment of $DNA$ which is responsible for inheritance and expression of a particular character is known as

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