Sexual  Reproduction
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Sexual Reproduction

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Sexual Reproduction Presentation Transcript

  • 1. Sexual Reproduction By- Justin Ehrenpreis
  • 2. Production of sex cells is……
    • Gametes
  • 3. Sex cell fuse by…………
    • Fertilization
  • 4. Produces an egg cell…….
    • Zygote
  • 5. What involves 2 parents?
    • Sexual Reproduction
  • 6. Both parents contribute…………
    • A Gamete
  • 7. Gametes contain……………….
    • Genetic information giving by……
    • Offspring obtained……
    • equally
  • 8. Gametes are formed in ……..
    • Reproductive structures called….
    • gonads
  • 9. Gametes are…………….
    • Sex cells
  • 10. Males cells called…………..
    • Sperm
  • 11. Females cells called…………..
    • Ovum or…….
    • egg
  • 12. Gametogenesis is
    • A process that gametes are produced by…..
    • Meiosis
    • That happens in the……….
    • Gonades
  • 13. Meiosis is……………..
    • Reduction division that create gametes
  • 14. Fertilization is………..
    • Fusion of one sperm nuclei with one ova (egg) nuclei, producing a …………………
    • Zygote
  • 15. Haploid or Monoplaoid represents…………….
    • A gamete which has half of the # of chromosomes necessary.
  • 16. Once 2 gametes fuse together they………
    • Form a zygote that is a……
    • Diploid
  • 17. Diploid has…………..
    • 2 joined chromosomes which is……….
    • A set
  • 18. Meiosis occurs in………
    • Diploid cells
  • 19. Meiosis chromosomes duplicate………
    • Once through 2 successive divisions, 4 haploid cells, with half the chromosome # of …….
    • Parental cell
  • 20. Meiosis occurs only in…..
    • Sexual reproducing organisms
  • 21. Depending on organism it may produce……………….
    • Haploid gametes, that………………
    • Do not…….
    • Divide further but……
    • Fuse to produce a…….
    • Diploid zygote
    • May produce…..
    • Haploid spores.
  • 22. Haploid spores …….
    • Divide by…..
    • Mitotic cell cycles and produce……
    • Unicellular or multi cellular organisms.
  • 23. Animas products of meiosis is the………………………
    • Gametes.
  • 24. Meiosis consist of……………
    • 2 nuclear divisions
    • Meiosis1 and 2
  • 25. Crossing-over is……….
    • A process that can give rise to genetic recombination.
  • 26. Nucleolus disappears during…………….
    • Prophase 1
  • 27. The key difference between mitosis and meiosis is……..
    • That sister chromatids remain joined after Metaphase in Meiosis 1, whereas in mitosis they separate.
  • 28. Centrioles are in…………
    • Opposite poles.
  • 29. Cytokinessis is
    • Separation.
  • 30. Meiosis has…….
    • 4 cells
  • 31. Mitosis has………
    • 2 cells
  • 32. Chromosome do not……….
    • Replicate again in Meiosis 2 Prophase 2
  • 33. Meiosis 2 Telophase 2
    • The making of 4 daughter cells