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April 26, 2026, 04:09:35 am
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Author Topic: meiosis q  (Read 1008 times)  Share 

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bts

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meiosis q
« on: March 01, 2015, 03:21:26 pm »
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1 ) hello can someone please explain genetic variation through the process of recombination (independant disjunction of non homogenous chromosomes)?
I already know hoe genetic variation through the process of cross over works :)

2 )Also, why can't crossing over occur in mitosis?

3) according to the attached picture... how did the paternal and maternal chromosomes get into one cell (the first image)? wouldn't that make the chromosome number 92?

Thank you ~
« Last Edit: March 01, 2015, 06:04:41 pm by bts »
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scarletmoon

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Re: meiosis q
« Reply #1 on: March 04, 2015, 02:30:04 pm »
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Crossing over can't occur in mitosis because there are no homologous pairs of chromosomes in mitosis. Crossing over occurs between two non sister chromatids of a homologous pair of chromosomes
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vox nihili

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Re: meiosis q
« Reply #2 on: March 04, 2015, 03:26:53 pm »
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Quote from: bts on March 01, 2015, 03:21:26 pm
1 ) hello can someone please explain genetic variation through the process of recombination (independant disjunction of non homogenous chromosomes)?
I already know hoe genetic variation through the process of cross over works :)

2 )Also, why can't crossing over occur in mitosis?

3) according to the attached picture... how did the paternal and maternal chromosomes get into one cell (the first image)? wouldn't that make the chromosome number 92?

Thank you ~

1. Recombination is the result of crossing over. It occurs when two chromosomes cross over and exchange material.

2. Already explained.

3. There is no attached picture.
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