Transition type of gene mutation is caused wh | vedclass

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(D) In transition mutation,a nitrogenous base is replaced by another base of the same chemical category. This means a purine is replaced by another pu

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$AT$ is replaced by $GC$

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(D) In transition mutation,a nitrogenous base is replaced by another base of the same chemical category. This means a purine is replaced by another purine $(A \rightleftharpoons G)$ or a pyrimidine is replaced by another pyrimidine $(C \rightleftharpoons T)$. In option $(d)$,$AT$ ($A$ is a purine,$T$ is a pyrimidine) is replaced by $GC$ ($G$ is a purine,$C$ is a pyrimidine). Specifically,$A$ is replaced by $G$ (purine to purine) and $T$ is replaced by $C$ (pyrimidine to pyrimidine),which fits the definition of a transition.

Transition type of gene mutation is caused when

Similar Questions

Which of the following is most difficult to detect?

Mutation is an error that occurs during cell division.

Assertion $(A)$: Mutation results in changes in genotype and phenotype of an organism.
Reason $(R)$: Mutation leads to alteration of $\text{DNA}$ sequences,i.e.,variations in $\text{DNA}$.
Choose the correct answer from the options given below.

Which base is responsible for spontaneous point mutations?

Sickle cell anemia is an example of which type of mutation?

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