Researchers monitored chromosomes 1 and 2 in two hundred cel

Researchers monitored chromosomes 1 and 2 in two hundred cells (RS/rs) going through meiosis. An analysis of the chromosomes, eventually recovered from the daughter cells, indicated that 138 showed no indication of crossovers; 46 indicated a single crossover event; 12 a double crossover event, and 4 a triple crossover event. What was the average number of crossovers between genes on the recovered chromosomes? (SHOW YOUR WORK)

Solution

Average crossing over = Total No. Of Crossing overs / Total Chromosomes involved

(1 x 46) + (2 x 12) + (3 x 4)/ 62

= 46+24+12/62

= 82/62

= 1.322