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Meiosis Review Answers

Meiosis Review Answers

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Meiosis Review Answers

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  1. Meiosis Review Answers MINITEST tomorrow

  2. Question # 1 • Match the following. • F Individual chromosomes line up at the equator • A Homologous chromosomes pair up; crossing-over occurs • G Centromere splits; sister chromatids move to opposite poles • E Chromosomes condense; spindle fibers form • D Cell divides forming 2 daughter cells • B Homologous chromosome pairs line up at the equator • C One chromosome from each pair moves to each pole • H Cell divides forming 4 haploid daughter cells

  3. Question #2 • What (specifically) is being made during meiosis? • Gametes • Sperm • Eggs

  4. Question #3 • How many times does the cell divide during meiosis? • Two times

  5. Question #4 • If an organism has 16 chromosomes in one of its body cells, how many chromosomes would its sex cells have? • 8

  6. Question #5 • What is crossing over? Draw an example to show crossing-over. • When pieces of chromosomes cross over each other, resulting in a new combination of genes

  7. Question #6 • When does crossing-over occur during Meiosis? • Prophase I

  8. Question #7 • Gametes are haploid/diploid.

  9. Question #8 • What does haploid mean? • One of each chromosome

  10. Question #9 • What does diploid mean? • Two of each chromosome

  11. Question #10 • What is a tetrad and when does it form? • A tetrad is four sister chromatids side-by-side • It forms during prophase I

  12. Question #11 • How many sperm are produced per parent cell during meiosis? • Four

  13. Question #12 • How many eggs are produced per parent cell during meiosis? • One • Why is this different from the number of sperm produced? • The cells divide unevenly

  14. Question #13 • Why does the chromosome number need to be cut in half during meiosis? • So that when the sperm and egg combine, the zygote will have the correct number of chromosomes

  15. Question # 14

  16. Question #15 • Know the Comparing Mitosis and Meiosis worksheet information.