DEPENDING UPON THE DISTANCE BETWEEN ANY TWO GENES WHICH IS INVERSELY PROPORTIONAL TO THE STRENGTH OF LINKAGE,CROSS OVER WILL VARY FROM?A-50-100%,0-50%,75-100%
Asked by Priyanka
6th November 2017,
4:16 PM
Answered by Expert
Answer:
The strength of the linkage is determined by the distance between the two genes. Greater the distance lower will be the linkage strength. The linkage is broken down due to the phenomenon of crossing over which occurs during meiosis.
Crossing over will be relatively more frequent, if the distance between the two genes is more than in a case where the distance between two genes is lesser.
Depending on the distance between any two genes which is inversely proportional to the strength of linkage, non-crossovers will vary from 50-100% (100% non-cross overs is a stage where no crossing over takes place). The crossovers will similarly vary from 0-50% and will never exceed 50%.
So, the correct answer is option B.
Answered by Expert
6th November 2017,
7:07 PM
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