(A) Tautomeric shifts are spontaneous changes in the molecular structure of nitrogenous bases in $DNA$. These shifts involve the migration of a hydrog

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(A) Tautomeric shifts are spontaneous changes in the molecular structure of nitrogenous bases in $DNA$. These shifts involve the migration of a hydrogen atom,which changes the base from its standard keto form to an imino or enol form. These alternative valence states allow for rare,incorrect base pairing (e.g.,$A$ pairing with $C$ instead of $T$),which can lead to mutations during $DNA$ replication.

Class 12 Biology Molecular Basis of Inheritance Mix Example-Molecular Basis of Inheritance

Medium

The alternative valence states of $DNA$ bases in $A=T$ and $G=C$ pairs are known as:

AIPMT 1994 All AIPMT

A
Tautomeric shifts
B
Transition mutations
C
Frameshift mutations
D
Point mutations

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Biology Questions

Chapter

Molecular Basis of Inheritance

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Mix Example-Molecular Basis of Inheritance

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Which of the following is an incorrect combination?

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Explain the Central Dogma in molecular biology.

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The eukaryotic genome differs from the prokaryotic genome because

MediumAIPMT 1999

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Which of the following is not a correct statement?

Medium

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Match the process in Column-$I$ with the enzyme involved in Column-$II$.
Column-$I$ Column-$II$
$(A)$ $DNA$ replication $(p)$ $RNA$ polymerase
$(B)$ Translation $(q)$ $DNA$ polymerase
$(C)$ Transcription $(r)$ Reverse transcriptase
$(D)$ Reverse transcription $(s)$ Aminoacyl synthetase

Select the code for the correct answer from the options given below.

Column-$I$	Column-$II$
$(A)$ $DNA$ replication	$(p)$ $RNA$ polymerase
$(B)$ Translation	$(q)$ $DNA$ polymerase
$(C)$ Transcription	$(r)$ Reverse transcriptase
$(D)$ Reverse transcription	$(s)$ Aminoacyl synthetase

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