The substitution of one purine N_2 base with | vedclass

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(A) In genetics,a point mutation is a change in a single nucleotide base pair. Transitions are a specific type of point mutation where a purine is rep

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Transition

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(A) In genetics,a point mutation is a change in a single nucleotide base pair. Transitions are a specific type of point mutation where a purine is replaced by another purine (e.g.,$A \leftrightarrow G$) or a pyrimidine is replaced by another pyrimidine (e.g.,$C \leftrightarrow T$). Transversions,on the other hand,involve the substitution of a purine for a pyrimidine or vice versa. Therefore,the correct term for the substitution of a purine with another purine or a pyrimidine with another pyrimidine is Transition.

List-$I$	List-$II$
$(a)$ Helicase	$(i)$ $DNA$-dependent $DNA$ synthesis
$(b)$ Ribonuclease	$(ii)$ Digestion of $RNA$
$(c)$ Reverse transcriptase	$(iii)$ Breaking hydrogen bonds between $DNA$ strands
$(d)$ $DNA$ polymerase	$(iv)$ $RNA$-dependent $DNA$ synthesis

The substitution of one purine $N_2$ base with another purine base or one pyrimidine $N_2$ base with another pyrimidine base is known as:

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