Meiosis
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Questions and Answers

Which type of reproduction involves the parent passing down all of its DNA to the offspring?

  • Binary fission
  • Meiotic reproduction
  • Mitotic reproduction
  • Asexual reproduction (correct)
  • What is the term for a pair of chromosomes that have genes for the same characteristics at the same loci?

  • Centromeres
  • Heterozygous chromosomes
  • Homologous chromosomes (correct)
  • Sister chromatids
  • If a sexually reproducing organism has a chromosome number of 2N = 18, how many chromosomes are in each of its sex cells?

  • 18
  • 72
  • 36
  • 9 (correct)
  • What type of cell division results in cells with half the number of chromosomes as the original cell?

    <p>Meiosis</p> Signup and view all the answers

    What is the term for a cell that has one of each kind of chromosome?

    <p>Haploid</p> Signup and view all the answers

    During which stage of meiosis are tetrads formed?

    <p>Prophase I</p> Signup and view all the answers

    What is the advantage of sexual reproduction?

    <p>Increased genetic diversity</p> Signup and view all the answers

    During which stage of meiosis do tetrads line up at the center of the cell?

    <p>Metaphase I</p> Signup and view all the answers

    What term is used to describe the sex cells?

    <p>Gametes</p> Signup and view all the answers

    During anaphase I, what is pulled apart?

    <p>Homologous chromosomes</p> Signup and view all the answers

    What is the symbol for diploid?

    <p>2N</p> Signup and view all the answers

    What is the process called when genes exchange between segments of homologous chromosomes during meiosis?

    <p>Crossing over</p> Signup and view all the answers

    What happens to the nuclear envelope during prophase I of meiosis?

    <p>It breaks down</p> Signup and view all the answers

    During which stage of meiosis I do the microtubules from opposite spindle poles capture the sister chromatids of each chromosome?

    <p>Metaphase I</p> Signup and view all the answers

    During which stage of meiosis II is there no formal interphase?

    <p>Meiosis II as a whole</p> Signup and view all the answers

    What is the end result of the meiosis process in terms of chromosome number?

    <p>Haploid</p> Signup and view all the answers

    What happens to the sister chromatids of each chromosome during anaphase I?

    <p>They are pulled towards opposite poles of the cell by the microtubules.</p> Signup and view all the answers

    What occurs during telophase I?

    <p>Nuclear membranes form around each set of chromosomes, and the chromosomes decondense.</p> Signup and view all the answers

    What happens during prophase II?

    <p>The chromosomes condense, and the nuclear envelope breaks down if needed.</p> Signup and view all the answers

    What is the result of anaphase II?

    <p>Each daughter cell receives one chromatid from each chromatid pair.</p> Signup and view all the answers

    What is the final product of meiosis II?

    <p>Four haploid cells in which each chromosome has just one chromatid.</p> Signup and view all the answers

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