Meiosis (crossing over)??

Biology
Tutor: None Selected Time limit: 1 Day

Describe two evolutionary consequences if the process of crossing over in meiosis ceased to occur.

 
Jun 11th, 2015

Thank you for the opportunity to help you with your question!

One thing to understand is that when crossing over don't happen two things occur, two things occur  genetic variation will be  limited to only independent segregation , and random fertilization. And without crossing over, the composition of chromosomes will not  change.

I think these would be the consequences,

1. The genetic variation among individuals of future generations will be largely restricted

2.  Being genetically similar it will wipe out the number of population thus leading to higher risk of extinction of the population

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 11th, 2015

What is random fertilization?

Jun 11th, 2015

what is random fertilization? 

Jun 11th, 2015

what is random fertilization? 

Jun 11th, 2015

what is random fertilization?

Jun 11th, 2015

What is random fertilization? 

Jun 11th, 2015

What is random fertilization? 

Jun 11th, 2015

What is random fertilization? 

Jun 11th, 2015

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