Meiosis 1 Meiosis is a type of cell division that produces gametes _________________. List the two main goals of meiosis. the chromosome number a. Reduce ________________________________________________________________________________ variation into the species b. Introduce ________________________________________________________________________________ 2. genetic material centrioles During interphase the ____________ _____________ and ________________________ are replicated. 3. A somatic ___________________ cell(body cell) has a diploid ________________ number(2n) of chromosomes. 4. 46 Humans have a diploid number of ___________. 5. A gamete ___________________ (sex cell) has a haploid ________________ number(n) of chromosomes. 6. 23 Humans have a haploid number of ___________. 7. 2 geneticall unique _______________ haploid During Meiosis a cell completes ________ divisions that result in________ cells. 8. 4 During Prophase I homologous chromosomes form tetrads _______________ consisting of __________ chromatids. 9. crossing-over homologous _________________________ is the process of __________________ chromosomes exchanging segments. I 10. Homologous chromosomes move to the middle of the cell during Metaohase ___________________________ of Meiosis. Independent Assortment _____________________ results from the random alignment of chromosomes 11. ________________________ during Metaphase I of meiosis. double I 12. _____________stranded chromosomes are pulled to opposite end of the cell during Anaphase ___________________. haploid 13. In Telophase I the cells become ________________, but contain double _______________ -stranded chromosomes. either _______________ and contain ______________ maternal or paternal 14. In Prophase II the cells are haploid chromosomes of each pair. single of the cell 15. The chromosomes align in a ______________ column along the middle ___________________ during Metaphase II. stranded 16. During Anaphase II chromosomes move to opposite end of the cell becoming single ____________ - _____________ for the first time. pinch plate together while plant cells form a cell __________ __________ during 17. Animal cells begin to _________________ Anaphase II ________________ of Meiosis. 4 haploid _______________________, __________ genetically unique ______________ ____________ 18. After Telophase II and cytokinesis 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