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Principles Of Inheritance And Variation

Question
CBSEENBI12003066
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In a mutational event, when adenine is replaced by guanine, it is a case of

  • Frameshift mutation

  • Transcription

  • Transition

  • Transversion

Solution

C.

Transition

Transition is substitution gene mutation in which a purine (adenine) is replaced by another purine (guanine) or a pyrimidine (thymine) is replaced by another pyrimidine cvytosine). Change of codon ATC to GTC or ATT or ACC is an example of transition.

Transversion in substitution gene mutation in which a purine (A or G) is replaced by a pyrimidine (T or C) or vice versa.

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