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Cell Division revision

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  • What are the names of the two types of gametes?
    egg cells (ova) and sperm cells
  • A hummingbird has 16 chromosomes in each body cell. How many chromosomes would be found in its daughter cells after mitosis?
    16
  • What is a sister chromatid?
    1/2 of a duplicated chromosome
  • How do mitosis and meiosis differ in the number of cells produced?
    2 vs. 4
  • What types of cells undergo meiosis?
    Gametes
  • How do mitosis and meiosis differ in cells produced? (different or identical)?
    identical vs. different
  • When during the cell cycle are chromosomes visible?
    Prophase
  • An apple has 12 chromosomes in its somatic cells. How many chromosomes would be found in its daughter cells after meiosis?
    6
  • What is formed at the end of mitosis?
    2 gentically identical cells
  • What does benign mean?
    noncancerous
  • If an organisms diploid number is 10. What is their haploid number?
    5
  • Look at the board. In cell B, how many chromosomes? homologous pairs? sister chromatids? replicated? haploid or diploid?
    On board
  • What is cancer?
    Cell division out of control
  • What is an advantage and disadvantage of asexual reproduction?
    a- quick, d- no genetic diversity
  • Through crossing over, _________ are shuffled in new combinations
    genes
  • What does metastasis mean?
    Has traveled to other areas of the body
  • At the end of meiosis, are the two cells haploid or diploid?
    diploid
  • What is the name of the cell that is created by the fusion of an egg cell and a sperm cell?
    cygote
  • If a lion has 18 chromosomes in its ___ cells, then it means that it has 36 chromosomes in its body cells.
    gametes or sex cells
  • What is the male sex chromosome called?
    Y
  • Somatic cells are diploid, gametes are .....
    haploid
  • An elephant's somatic cells have 22 chromosomes, so that means its sex cells have ___ chromosomes.
    11
  • How many gametes are produced from one germ cell during meiosis?
    4
  • What are the phases of mitosis? (in the correct order)
    prophase, metaphase, anaphase, telophase
  • What must happen to the DNA before a cell can divide? Why is this important?
    DNA replication - all daughter cells need an exact copy of the DNA so they can do their specific jobs
  • When is the cell not dividing in the cell cycle?
    During interphase
  • What provides new genetic combinations in meiosis?
    Crossing over, independent assortment, or segregation of gametes
  • How do mitosis and meiosis differ in cells produced? (haploid/diploid)?
    diploid vs. haploid
  • How many chromosomes do humans have?
    46
  • In what phase of meiosis does crossing over happen?
    prophase
  • How do mitosis and meiosis differ in the number of cell divisions?
    1 vs. 2
  • What happens in anaphase (1 and 2)
    Chromosomes or chromatids are pulled apart
  • In asexual reproduction, how many parents are there?
    1
  • Fertilization is when two germ cells _______, creating a new individual
    fuse
  • What types of cells undergo mitosis?
    Body cells
  • What is the name of the of the process that allows for genetic variation?
    crossing over
  • What is formed at the end of meiosis?
    4 gentically different cells
  • What does malignant mean?
    cancerous
  • What is a disadvantage and advantage of sexual reproduction?
    d - take awhile, have to find a mate, a - genetic diversity
  • How do mitosis and meiosis differ in functions?
    grow, develop vs. reproduction
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