(A) Proline is a secondary amine

(B) Most of natural α-aminoacids have L-configuration

(C) RNA contains the bases adenine, guanine, cytosine and thymine

(D) A trinucleotide has phosphodiester linkage.

Correct among the above statements are

A, B, C

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B, C, D

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A, B, D

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A, C, D

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Solution

The correct option is C
A, B, D

RNA contains all the bases present in DNA except thymine. In the place of thymine, RNA contains the base uracil.

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Similar questions

Statement 1: The four nitrogen bases in a DNA molecule are guanine, thymine adenine, cytosine.

Statement 2: Where adenine and thymine are purines and guanine and cytosine are pyrimidines.

$I$	$I I$
$(a)$ Hydrogen bond	$(i)$ Adenine - deoxyric base
$(b)$ N-glycosidic linkage	$(i i)$ Glucose - Fructose
$(c)$ Phosphodiester bond	$(i i i)$ Leucine - Glycine
$(d)$ Peptide bond	$(i v)$ Nucleotide - Nucleotide in polynucleotide chain
	$(v)$ Guanine - Cytosin on opposite strands of DNA

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