In a cross, 80% parental and 20 % recombinant type progenies occured. Its recombination frequency is :

10%

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20%

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40%

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80%

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Solution

The correct option is B 20%
Recombination frequency is a measure of genetic linkage and is used in the creation of a genetic linkage map.
In the given case, 20% recombinant progenies occurred. So it's recombinant frequency is 20%.
So, the correct answer is '20%'

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Ratio between parental types and recombinants in a typical dihybrid cross conducted by Mendel is ___.

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