SME
Grade 9 Science · Problem type
Meiosis I and II
Use this for “What are the final products of meiosis?”
Put in order
Put the stages of meiosis in order, from interphase.
1
?
2
?
3
?
4
?
5
?
6
?
7
?
8
?
9
?
Assumptions
•
Homologous chromosomes pair up and cross over in prophase I, swapping pieces.
•
Anaphase I separates the homologs; anaphase II separates the sister chromatids.
•
The result is four haploid cells, n = 2, and no two alike.
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The cell cycle and its control, cancer, mitosis and meiosis
Main lesson
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Use this for “Why do offspring from sexual reproduction vary more than those from mitosis?”
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