Statement P: m-RNA contains 75 nucleotides.St | vedclass

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(A) Statement $P$ is incorrect because the length of $m-RNA$ is not fixed at $75$ nucleotides; it varies depending on the length of the polypeptide ch

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Both statement $P$ and statement $Q$ are incorrect.

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(A) Statement $P$ is incorrect because the length of $m-RNA$ is not fixed at $75$ nucleotides; it varies depending on the length of the polypeptide chain it encodes.Statement $Q$ is incorrect because there are generally $61$ codons that code for amino acids,and there are typically $61$ types of $t-RNA$ molecules (excluding stop codons),not $20$. While there are $20$ types of amino acids,the number of $t-RNA$ types corresponds to the number of sense codons.

Column $X$	Column $Y$
$(1)$ Chromosome	$(P)$ Genetic code
$(2)$ $m-RNA$	$(Q)$ Gene
$(3)$ $t-RNA$	$(R)$ Ribosome
$(4)$ $r-RNA$	$(S)$ Anticodon

Statement $P$: $m-RNA$ contains $75$ nucleotides.
Statement $Q$: There are $20$ types of $t-RNA$ in the cytoplasm.

Similar Questions

Select the correct match for $X$ and $Y$:
Column $X$ Column $Y$
$(1)$ Chromosome $(P)$ Genetic code
$(2)$ $m-RNA$ $(Q)$ Gene
$(3)$ $t-RNA$ $(R)$ Ribosome
$(4)$ $r-RNA$ $(S)$ Anticodon

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Statement $P$: $m-RNA$ contains $75$ nucleotides.Statement $Q$: There are $20$ types of $t-RNA$ in the cytoplasm.