Genetics

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Across
  1. 3. a section of DNA that codes for a particular characteristic
  2. 6. A sudden random change in the base sequence of DNA
  3. 7. Having two different alleles for a particular gene
  4. 10. deoxyribonucleic Acid
  5. 12. made up of DNA, found in the nucleus of a cell
  6. 13. Ovum and sperm in animals or ovule and poolen grain in plants
  7. 15. physical characteristics produced by a particular genotype
  8. 16. Alternative version of a gene that has different base sequences
Down
  1. 1. Combination of two alleles for a particular gene
  2. 2. Opposite to dominant
  3. 4. The difference between individuals in a population
  4. 5. Having two identical alleles for a particular gene
  5. 8. a distinctive feature of an organism
  6. 9. one of the four chemicals which make up the 'rungs' of DNA
  7. 11. Allele that is always expressed regardless of other allele
  8. 14. the structural and functional unit all living organisms