Meiosis Worksheet PDF

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Meiosis Name ________________________ Date __________ Section ________

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gametes Meiosis is a type of cell division that produces _________________. List the two main goals of meiosis. the chromosome number a. Reduce ________________________________________________________________________________ variation into the species b. Introduce ________________________________________________________________________________

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genetic material centrioles During interphase the ____________ _____________ and ________________________ are replicated.

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diploid A somatic ___________________ cell(body cell) has a ________________ number(2n) of chromosomes.

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46 Humans have a diploid number of ___________.

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haploid A gamete ___________________ (sex cell) has a ________________ number(n) of chromosomes.

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23 Humans have a haploid number of ___________.

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2 geneticall unique _______________ haploid During Meiosis a cell completes ________ divisions that result in________ cells.

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tetrads 4 During Prophase I homologous chromosomes form _______________ consisting of __________ chromatids.

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crossing-over homologous _________________________ is the process of __________________ chromosomes exchanging segments.

Metaohase I 10. Homologous chromosomes move to the middle of the cell during ___________________________ of Meiosis. Independent Assortment 11. ________________________ _____________________ results from the random alignment of chromosomes during Metaphase I of meiosis. double Anaphase I 12. _____________stranded chromosomes are pulled to opposite end of the cell during ___________________. haploid double 13. In Telophase I the cells become ________________, but contain _______________ -stranded chromosomes. haploid either 14. In Prophase II the cells are _______________ and contain ______________ maternal or paternal chromosomes of each pair. single middle of the cell 15. The chromosomes align in a ______________ column along the ___________________ during Metaphase II. single stranded 16. During Anaphase II chromosomes move to opposite end of the cell becoming ____________ - _____________ for the first time. pinch cell plate 17. Animal cells begin to _________________ together while plant cells form a __________ __________ during Anaphase II ________________ of Meiosis. cytokinesis 4 unique haploid 18. After Telophase II and _______________________, __________ genetically ______________ ____________ cells result.

19. Use the following terms to label the phases of Meiosis. (Anaphase I, Anaphase II, Crossing-over, Independent Assortment, Metaphase I, Metaphase II, Prophase I, Prophase II, Telophase I, Telophase II) Independent Assortme

TeloPhase I

Anaphase II

Metaphase II

Prophase I

Crossing-over

Metaphase I

Telophase II

Prophase II

Anaphase I

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