Practice question
Question
In the linkage map of three genes, A, B, and C, the distance between A and B is 7 cM, and B and C is 10 cM. The chiasma interference is 0.3. The percentage of progeny showing double crossing over will be
Explanation
The principle of quantitative reasoning explains that ratio, percentage and series logic determine correct calculation. Hence 0.49% fits best because it meets mathematical and logical criteria, as documented in authoritative sources on aptitude and reasoning.
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