Meiosis

• Which 2 of the following cells types are examples of sex cells (gametes)

  Sperm cells

  Egg cells
• What does the term ’haploid’ mean?

  Half the normal number of chromosomes.
• Are gametes haploid cells?

  Yes
• How many chromosomes does a human gamete have?

  23
• When 2 haploid cells join, they form a…

  Diploid cell.
• During meiosis, how many times does the cell divide?

  Two
• As a result of meiosis, how many cells are produced?

  Four
• Are the cells produced by meiosis genetically identical to each other, or genetically unique?

  Genetically unique
• Sexual reproduction uses the process of meiosis which creates gametes.
• Meiosis

  A form of cell division which produces 4 genetically different haploid sex cells or gametes.
• Meiosis stages

  1.parent cell

  2.chromosomes make identical copies of themselves

  3.similar chromosomes pair up

  4.sections of DNA get swapped

  5.first cell division - chromosomes pairs separate

  6.second cell division
• Where does meiosis occur?

  Testes in male

  Ovaries in women