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If single cross over frequency between two genes r and q and q and s in 3 point mapping is 0.6 and 0.2 respectively. What will be the expected double cross over frequency?

If single cross over frequency between two genes r and q and q and s in 3 point mapping is 0.6 and 0.2 respectively. What will be the expected double cross over frequency? Correct Answer 0.022

Expected double cross over frequency by probability rule is product of the two single crossover frequencies in three point mapping. Here 20.8X10.0/10000 results on 0.022.

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