![Meiosis: Important Vocabulary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recomendados
Recomendados
Mais conteúdo relacionado
Mais procurados
Mais procurados (20)
Destaque
Semelhante a Meio
Semelhante a Meio (20)
Mais de farrellw
Mais de farrellw (20)
Último
Último (20)
Meio
- 1. Cell Division SOL: BIO 6 a-c
- 6. Meiosis: cell division in two parts Chromatids separate Sister chromatids separate Result: one copy of each chromosome in a gamete. (equational division) 2n n Diploid 2n Diploid Meiosis I (reduction division) Meiosis II Haploid
- 7. Meiosis I : the reduction division Prophase I (early) (diploid) Prophase I (late) (diploid) Metaphase I (diploid) Anaphase I (diploid) Telophase I (diploid) Nucleus Spindle fibers Nuclear envelope
- 8. Prophase I Early prophase Chromatids pair. Crossing over occurs. Late prophase Chromosomes condense. Spindle forms. Nuclear envelope fragments.
- 9. Metaphase I Chromatid pairs align along the equator of the cell.
- 10. Anaphase I Chromosomes separate and move to opposite poles. Sister chromatids remain Attached at their centromeres.
- 11. Telophase I Nuclear envelopes reassemble. Spindle disappears. Cytokinesis divides cell into two.
- 12. Meiosis II Gene X Meiosis II produces gametes with one copy of each chromosome and thus one copy of each gene. Sister chromatids carry identical genetic information .
- 13. Meiosis II : the equational division Prophase II (diploid) Metaphase II Anaphase II Telophase II Four Non-identical haploid daughter cells
- 14. Prophase II Nuclear envelope fragments. Spindle forms.
- 15. Metaphase II Chromosomes align along equator of cell.
- 16. Anaphase II Sister chromatids separate and move to opposite poles.
- 17. Telophase II Nuclear envelope assembles. Chromosomes unravel. Spindle disappears. Cytokinesis divides cell into two.
- 19. “ Putting It All Together” - Fertilization
- 20. What Meiosis is About Meiosis allows the creation of unique individuals through sexual reproduction.
- 21. Mitosis Meiosis Number of divisions 1 2 Number of daughter cells 2 4 Genetically identical? Yes No Chromosome # Same as parent Half of parent Where Somatic cells Sex cells When Throughout life At sexual maturity Role Growth and repair Sexual reproduction
- 22. MITOSIS MEIOSIS Occurs in somatic (body) cells Occurs only in gonads (sex organs: ovary/testes) Produces cells for repair, maintenance, growth, asexual reproduction Only produces gametes (sex cells: egg/sperm) Results in identical diploid (2n) daughter cells Reduction division results in 4 haploid (n) cells