Assertion : Someaclonal variations may be presnt in plants produce from callus.
Resons : Somaclonal variations are caused due to recombination during meiosis.

Options

A. If both the assertion and the reason are true and the reasons is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reson is false
D. If both the assertion and reason are false

Answer

C

Explanation

(c ) The cells of the plants regenerated from cell cltures (callus ) shoe heritale variation for both qualitative and quantiative tirits, such a variation is know as somachonal variation. These variations arise as a result of structural changes in chromosome, gene mutations. olasmagene mutations, gene amplification, altred experssion of multigene families, transpoable elements experission of multigene crossing over. (A) is ture but (R) is false.