Double cross over involving ________ strands result in 100% recombinant strands.
A. 1
B. 2
C. 3
D. 4
This question was posed to me during a job interview.
My question is based upon Linkage and Crossing Over in section Genetic Recombination of Cytogenetics
Right option is D. 4
The best I can explain: Double cross over event between for strands will result in all the strands exchanging their genes. Thus, all the resultant will be recombinant so recombination frequency is 100%.