sexual reproduction

• • sexual reproduction produces gametes through meiosis
  • meiosis leads to non-idential gametes
• • sexual reproduction is the fusion of male and female gametes
• • there are two parents in sexual reproduction
  • so, egg and sperm fuse to form cell
  • egg and sperm provide 23 chromosomes each to form a cell with a full 46 chromosomes
• • egg and sperm provide 23 chromosomes each
  • so, there is a mix of genetic information
  • so, offspring inherites features from both parents
  • so, there is variety in offspring
• • flowering plants reproduce sexually
  • egg and pollen cells fuse
• advantages:

  • produces variety in offspring
  • variation gives survival advantage by in environmental changes
  • natural selection
  • better adapted to environment
  • better chance of survival
  • more likely to breed successfully and pass genes on
  • selective breeding can speed up natural selection to increase food production
  • breeding animals that produce alot of meat