Why are double-crossover events expected less frequently than single-crossover events?

Hello everyone and welcome to today's video. So two genes that are very close on a chromosome will show which of these following phenomena. In order to solve this problem, I want you to recall that genes that are very close together on a chromosome or called linked genes, genes are linked are going to be inherited together now, crossing over can also be called recombination. However, since these genes are so close together and they are linked and they're also inherited together, they are not going to cross over or recombine because of this, the correct answer choice is going to be answer choice. The fact that these genes are so close together is going to stop them from closing over and recombining. I really hope this video helped you and I hope to see you on the next one.