Hellow guys, Welcome to my website, and you are watching Genetics: L9-A, Linkage: Single Crossovers and Double Crossovers (Recommend 1.5x Speed). and this vIdeo is uploaded by BSC 219 Genetics at ISU at 2020-02-06T15:12:05-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.