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Meiosis

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  • During which meiosis phase(s) does the nuclear membrane breakdown?
    Prophase 1 and 2
  • Which stage of meiosis is shown in the diagram?
    anaphase 2
  • A cell containing two complete sets of chromosomes, can also be signified by the symbol 2n, is called _____ .
    diploid
  • Which stage of meiosis is shown in the diagram?
    metaphase 2
  • Which sex chromosomes do skin cells of a male human contain?
    XY
  • Name two haploid human cells?
    Egg and sperm
  • True or False: Meiosis starts with a diploid cell.
    True
  • Which stage of meiosis is shown in the diagram?
    telophase 1
  • In which stage of meiosis are sister chromatids separated?
    Anaphase 2
  • True or false: 4 genetically identical cells are produced at the end of meiosis 2.
    false
  • In which stage of meiosis do homologous chromosomes pair to form bivalents?
    Prophase 1
  • What is the name for the exchange of alleles between non-sister chromatids of homologous chromosomes during meiosis I?
    crossing over
  • What is the name for the nuclear division that results in a reduction in chromosome number (the first division of meiosis)
    Reduction division
  • Diagram shows a cell from testis of a locust doing meiotic division. The cell is in which stage of meioisis?
    Prophase I
  • In which stage of meiosis are homologous chromosomes separated?
    anaphase 1
  • What pulls chromosomes apart during anaphase of cell divisions?
    Spindle fibers, microtubules
  • Which of the following is/are correct for both mitosis and meiosis? I- chromosome number is maintained II- Homologous chromosomes paired up III- Sister chromatids separate IV- Occurs in prokaryotes
    III only
  • Which structure holds sister chromatids together?
    Centromere
  • During which phase of meiosis does crossing over happen?
    Prophase 1
  • Pairs of homologous chromosomes line-up independently of each other during which phase of meiosis?
    Metaphase 1
  • Mitotic division of a cell with 8 chromosomes produces 2 identical daughter cells with 4 chromosomes. True of false?
    False
  • What is the position at which non-sister chromatids of homologous chromosomes cross over each other called?
    Chiasma/chiasmata
  • Which stage of meiosis is shown in the diagram?
    Metaphase 1
  • How many pair of sex chromosomes do human skin cells have?
    1
  • The diploid (2n) chromosome number of a mammal is 12. How many chromosomes do its eggs contain?
    6