P: Nitrogen is essential for the synthesis of | vedclass

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Question

(B) $1$. Nucleic acids ($DNA$ and $RNA$) are polymers of nucleotides.$2$. Each nucleotide consists of a nitrogenous base,a pentose sugar,and a phospha

Vedclass · Accepted Answer

Both statements $P$ and $Q$ are true.

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(B) $1$. Nucleic acids ($DNA$ and $RNA$) are polymers of nucleotides.$2$. Each nucleotide consists of a nitrogenous base,a pentose sugar,and a phosphate group.$3$. Nitrogenous bases (purines and pyrimidines) contain nitrogen,which is essential for their synthesis.$4$. The phosphate group (derived from phosphoric acid) links the nucleotides together in the backbone of the nucleic acid chain.$5$. Therefore,both nitrogen and phosphorus are essential components of nucleic acids.$6$. Hence,both statements $P$ and $Q$ are true.

Column $I$	Column $II$
$(A)$ Thymine	$(i)$ Nucleic acid
$(B)$ Deoxythymidine	$(ii)$ Nucleoside
$(C)$ Guanylic acid	$(iii)$ Nucleotide
$(D)$ Poly guanylic acid	$(iv)$ Nitrogenous base

$P$: Nitrogen is essential for the synthesis of nucleic acids.
$Q$: Phosphorus is important in the structure of nucleic acids.

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Match the column $I$ with column $II$:
Column $I$ Column $II$
$(A)$ Thymine $(i)$ Nucleic acid
$(B)$ Deoxythymidine $(ii)$ Nucleoside
$(C)$ Guanylic acid $(iii)$ Nucleotide
$(D)$ Poly guanylic acid $(iv)$ Nitrogenous base

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$P$: Nitrogen is essential for the synthesis of nucleic acids.$Q$: Phosphorus is important in the structure of nucleic acids.