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When does Crossing over occur?

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bluesdeluxe

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I've read several places that say it occurs only in tetra formation during Meiosis Prophase I. Other places suggest it happens in Meiosis Metaphase. I originally thought metaphase. Any definite answer here?
 

djeffreyt

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amsie said:
leptotene zygotene pachytene diplotene diakinesis (in prophase I)

I wouldn't worry about these substages...the DAt won't test on them unless they suddenly decided last week to make the test 10000% harder.

Just remember that Crossing Over occurs in Prophase I of meiosis, and you be fine...just watch out for the trick answer:

c) on late night TV with John Edwards

this is a trick aswer...do not fall for it.
 
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