KVPY SB SX Exam 2011 Question Paper

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Question : 112 of 120

Marks: +1, -0

Rice has a diploid genome with 2n = 24. If crossing-over is stopped in a rice plant and then selfed seeds are collected, will all the offsprings be genetically identical to the parent plant?

yes, because crossing-over is the only source of genetic variation
no, because stopping of crossing-over automatically increases rate of point mutation
yes, only if the parent plant was a completely inbred line
yes, only if the parent plant was a hybrid between two pure-bred lines

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