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Which of the following is not true about conservative transposition?

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Which of the following is not true about conservative transposition?

(a) It creates direct repeat sequences on either side

(b) It is Copy-Paste mechanism

(c) Transesterification reaction takes place

(d) Class II transposons have this mechanism

I have been asked this question by my college professor while I was bunking the class.

This interesting question is from Chromosomal Abnormalities : Translocation topic in division Chromosomal Basis of Inheritance of Cytogenetics

1 Answer

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Right choice is (b) It is Copy-Paste mechanism

Explanation: Conservative or non-replicative transposition acts through cut and paste mechanism. The donor site loses the transposon which is inserted in the recipient generating direct repeats. It is seen in class II transposons.

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