Sexual and Asexual Reproduction

• it is the process where we only need one parent / offspring to reproduce. the offspring will be identical to it's parent

  asexual reproduction
• it elongates and the cells dna are copied

  binary fission
• it serves to carry the genetic information from cell to cell

  chromosomes
• _DNA or deoxyribonucleic acid, is the hereditary material

  in humans and almost all other organisms.
• it occurs when a new organism grows off a parent

  budding
• fragmentation or regeneration
• when a new plant grows off an existing part of an old plant

  vegetative propagation
• benefits of asexual reproduction:

  • rapid population growth
  • requires less energy
  • all organisms are capable of reproduction
• benefits of asexual reproduction

  • one organism = a entire population
  • less chances to become extinct
  • genetic copy from it's parent
• disadvantages of asexual reproduction

  • no genetic diversity - prone to disease and can't adapt to changing enviroments
• it requires two organisms to reproduce

  sexual reproduction
• male egg cell


  sperm
• female eggcells


  ovum
• pollen is a sperm
• the offspring in sexual reproduction is different / mixed rather than genetically identical
• both an egg and a sperm have how many chromosomes (dna?

  23
• how much chromosomes does a zygote have?

  46 in 23 pairs
• sexual reproduction allows for more genetic diversity meaning;

  • the ability to adapt to enviromental change and have a variety of species
• disadvantages of sexual reproduction

  • requires two offsprings with opposite gametes
• another word for gametes is sex cells