Given below are two statements:
Statement $I$: Transfer $\text{RNAs}$ and ribosomal $\text{RNA}$ do not interact with $\text{mRNA}$.
Statement $II$: $\text{RNA}$ interference $\text{(RNAi)}$ takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements,choose the most appropriate answer from the options given below.

  • A
    Both Statement $I$ and Statement $II$ are correct
  • B
    Both Statement $I$ and Statement $II$ are incorrect
  • C
    Statement $I$ is correct but Statement $II$ is incorrect
  • D
    Statement $I$ is incorrect but Statement $II$ is correct

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Genetic mutations occur in which of the following?

Given below are two statements.
Statement $I$: Heterocatalytic function of $DNA$ includes transcription and translation.
Statement $II$: $A$ unique feature of $DNA$ molecule which helps in its semiconservative duplication is the complementary nature of two strands.
In the light of the above statements,choose the correct answer from the options given below.

Match the researchers in Column-$I$ with their work given in Column-$II$.
Column-$I$Column-$II$
$i$. Avery,McCarty,and MacLeod$a$. $DNA$ digested by DNAse inhibits transformation of $R$ cells to $S$ cells.
$ii$. Griffith$b$. $DNA$ replication is semi-conservative.
$iii$. Hershey and Chase$c$. Used Streptococcus pneumoniae.
$iv$. Meselson and Stahl$d$. Used radioactive Sulphur and Phosphorus.
Select the correct option from the following.

Assertion $(A):$ The split gene arrangement represents probably an ancient feature of the genome.
Reason $(R):$ $\text{hnRNA}$ undergoes additional processing called as capping and tailing.
Choose the correct option.

The central dogma of molecular biology is shown below. Identify the processes $P, Q,$ and $R$.

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