reproduction

• two types of reproduction

  asexual

  sexual
• how many parents are needed for asexual reproduction

  1
• how many parents are needed for sexual reproduction

  2
• what are clones


  genetically identical to the parent
• what cell division is asexual reproduction

  mitosis
• what is mitosis


  only needs one parent as gametes do not fuse

  genetic information does not mix
• how many cells are produced from mitosis

  2
• how many cells are produced from meiosis

  4
• what is meiosis


  fusion of gametes- fertilisation

  genetic information does mix

  produces 4 cells
• what is variation


  offspring isnt genetically identical to parents as 2 parents are involved so has a mix of both parents DNA
• advantage of asexual reproduction


  time and energy efficient as only one parent involoved
• disadvantage of sexual reproduction

  time and energy as need to find mate
• disadvantage of asexual reproduction

  all clones so no variation
• advantage of sexual reproduction

  variation in offspring