The point mutations that induce changes in DN | vedclass

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(A) Point mutations are classified based on the type of base substitution:$1$. $Transition$: Substitution of a purine for another purine $(A \leftrigh

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Transition,Transition,Transversion,Transversion

Vedclass · Answer

(A) Point mutations are classified based on the type of base substitution:$1$. $Transition$: Substitution of a purine for another purine $(A \leftrightarrow G)$ or a pyrimidine for another pyrimidine $(C \leftrightarrow T)$.$2$. $Transversion$: Substitution of a purine for a pyrimidine or vice versa $(A/G \leftrightarrow C/T)$.Analyzing the given changes:- $A 	o G$: Purine to Purine $\implies$ $Transition$- $C 	o T$: Pyrimidine to Pyrimidine $\implies$ $Transition$- $C 	o G$: Pyrimidine to Purine $\implies$ $Transversion$- $T 	o A$: Pyrimidine to Purine $\implies$ $Transversion$Therefore,the sequence is $Transition, Transition, Transversion, Transversion$.

The point mutations that induce changes in $DNA$ as $A \to G$,$C \to T$,$C \to G$,and $T \to A$ are respectively:

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Mutagens are

Assertion $(A)$: Mutation results in changes in genotype and phenotype of an organism.
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