Selective breeding

• Selective breeding is hen humans choose which organims to breed together to produce offspring with desirable trait (e.g.sheep with more hair or animals with more meat)
• Domestication

  • Using selective breeding ti produce animals more tame and more useful to us
• Disadvantages of selective breeding

  1. Domestication
  2. Inbreeding
• Inbreeding

  • Happens when indiviudalz genetically similar breed together
  • Leads to lack of variation in population
  • Can make breed prone to certain diseases or birth effects
  • It means individuals are most likely to be homozygous for recessive disorder
• Steps

  1. Parents with desired characteristics chosen
  2. They are bred together
  3. From offspring those with desired characteristics are bred together
  4. The process is repeated until all offspring have desired characteristics
• What is breeding close individuals toghehter

  Inbreeding