selective breeding

• selective breeding

  when humans artificially select the plants and animlas that will breed so that the genes and particular charecteristics remain
• process

  • from the stock select one with charecteristics
  • breed with each other
  • select best offspring and breed togther
  • continue process over several gens
• reduction in gene pool

  • number of different alleles in population
  • inbreeding can cause health problems- more chance of organism inheriting harmful genetic defects when gene pool is limited
  • new diseases