Selection

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Across
  1. 3. this pool is not for swimming
  2. 5. selective agent in artificial selection
  3. 7. the elective pressure during natural selection of antibioti resistant bacteria
  4. 11. natural selection that tends
  5. 13. keep allele frequencies relatively constant over
  6. 14. breeding between organims with similar genotypes
  7. 16. an anvironmental factor caused by non-livin component
  8. 17. neede for both natuaral and artificial selection
Down
  1. 1. in population favoured just by chance
  2. 2. gradual change in allele
  3. 4. true for discontinuous variation
  4. 6. generations
  5. 8. a large number of genes having combined effect on a particular phenotypic trait
  6. 9. an example of a biotic factor
  7. 10. ability of an organism to survive and reproduce
  8. 12. graph for discontinuous variation
  9. 15. An animal not welcomed in Australia