What exactly is crossing over and how is it used to determine chromosome sequence?

Subject: What exactly is crossing over and how is it used to determine chromosome sequence?

Date: Wed May 24 08:10:03 2000
Posted by Lucinda Chesterton
Grade level: 10-12 School: Newcastle-inder-Lyme School
City: Stoke-on-Trent State/Province: Staffordshire Country: England
Area of science: Genetics
ID: 959170203.Ge

Message:

I am doing an essay on the mapping of the human genome for an A-level assesment and have found that the mapping involves something called 'crossing over'. It is important I explain it in my own words yet I don't understand the explanation given in information I have at hand.

Re: What exactly is crossing over and how is it used to determine chromosome sequence?

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