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Meiosis Review

Meiosis Review. ________ are sex cells. . Gametes. The daughter cells produced at the end of meiosis II are considered- diploid or haploid?. Haploid. What is the genetic relationship of daughter cells to each other in meiosis?. Genetically DIFFERENT!.

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Meiosis Review

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  1. Meiosis Review

  2. ________ are sex cells. • Gametes

  3. The daughter cells produced at the end of meiosis II are considered- diploid or haploid? • Haploid

  4. What is the genetic relationship of daughter cells to each other in meiosis? • Genetically DIFFERENT!

  5. How many daughter cells are produced from meiosis? • 4

  6. _______ is the female gamete. • Egg cell

  7. ___________ are the paired chromosomes that have genes for the same traits arranged in the same order. • Homologous chromosomes

  8. _________ is the process of joining gametes. • Fertilization

  9. What are the male sex chromosomes? • XY

  10. How many chromosomes do you have in your skin cells? • 46

  11. ____________ is a cell containing 2 sets of chromosomes. • Diploid

  12. Is the number of chromosomes related to the complexity of an organism? WHY? • NO! • A dog has 78 chromosomes and is less complex than humans

  13. _______ is a two stage type of cell division that creates gametes. • Meiosis

  14. At the end of meiosis II, how many (human) chromosomes does each daughter cell have? • 23

  15. How many cell divisions occur in MITOSIS? • 1

  16. The daughter cells produced at the end of MITOSIS are considered- haploid or diploid? • Diploid

  17. What is the diploid number in humans? • 46

  18. __________ are all cells other than egg or sperm cells. • Somatic cells

  19. How many chromosomes do you have in your egg or sperm cells? • 23

  20. What is the genetic relationship of daughter cells to each other in MITOSIS? • Genetically the SAME!

  21. ________ is the cell that is created when a sperm fertilizes an egg. • zygote

  22. What are the female sex chromosomes? • XX

  23. What is the genetic relationship of daughter cells to parent cell in meiosis? • Genetically DIFFERENT!

  24. _________ is a cell with only ONE set of chromosomes. • Haploid

  25. Why is meiosis significant? (2 reasons) • 1. creates haploid gametes • 2. provides genetic variation

  26. How many chromosomes do you get from your mom? • 23 • Homologous Chromosomes

  27. During what stage of meiosis does crossing over occur? • Prophase I

  28. How many cell divisions occur in meiosis? • 2

  29. __________ occurs when nonsister chromatids of homologous chromosome exchange genetic information. • Crossing over

  30. What is the genetic relationship of daughter cells to parent cell in MITOSIS? • Genetically the SAME!

  31. At the end of meiosis I, how many (human) chromosomes does each daughter cell have? • 46

  32. EXPLAIN how meiosis provides genetic variation? (2 ways) • 1. Crossing over – random swapping of DNA • 2. Independent assortment of the homologous chromosomes – it is random to which side of the cell the chromosomes move to

  33. How many daughter cells are produced from MITOSIS? • 2

  34. What is the haploid number in humans? • 23

  35. Are your sex cells diploid or haploid? • Haploid

  36. Are your somatic cells diploid or haploid? • Diploid

  37. ______ is the male gamete. • sperm

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