How does crossing over affect evolution?

Crossing over allows genetic variants on the same chromosome to evolve independently, which greatly increases an organism’s evolutionary potential.

If there were no crossing over, all genetic variants on a chromosome would be inherited as a block. Image a chromosome copy which contains a good variant–let’s say, flu resistance–at one gene, and a bad variant–let’s say, tapeworm susceptibility–at a different gene. Without crossing over, the population has to choose between flu and tapeworms. Crossing over can produce a chromosome with the good variant and without the bad one, allowing the population to move toward a better solution. This speeds up the rate of adaptation.

Needs help with similar assignment?

We are available 24x7 to deliver the best services and assignment ready within 6-12hours? Order a custom-written, plagiarism-free paper

Get Answer Over WhatsApp Order Paper Now

Do you have an upcoming essay or assignment due?

All of our assignments are originally produced, unique, and free of plagiarism.

If yes Order Paper Now