The DNA LEVEL 3 MCQs Molecular Basis of Inheritance Biology - XII NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

Consider the given two statements:

Assertion (A):	Retroviruses are one known exception to the central dogma in molecular biology as proposed by Francis Crick.
Reason (R):	In retroviruses a sequence of nucleotides is copied from an RNA template during the synthesis of a molecule of DNA.

1.	Both (A) and (R) are True but (R) does not correctly explain (A).
2.	(A) is True but (R) is False.
3.	(A) is False but (R) is True.
4.	Both (A) and (R) are True and (R) correctly explains (A).

Subtopic: The DNA |

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From NCERT

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The difference between ATP and the nucleoside triphosphates used during DNA synthesis is that:

1.	The nucleoside triphosphates have the sugar deoxyribose; ATP has the sugar ribose.
2.	The nucleoside triphosphates have two phosphate groups; ATP has three phosphate groups.
3.	ATP contains three high-energy bonds; the nucleoside triphosphates have two.
4.	ATP is found only in human cells; the nucleoside triphosphates are found in all animal and plant cells.

Subtopic: The DNA |

From NCERT

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NEET 2026 - Target Batch - Vital

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