biology

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Across
  1. 1. extra fingers/toes
  2. 2. male gametes
  3. 5. isn't contagious
  4. 7. needs two to be inherited
  5. 9. female gametes
  6. 11. contagious
  7. 12. alleles present in the genome
  8. 13. sperm and egg fusing together
Down
  1. 1. physical characteristics of an individual
  2. 3. two identical alleles of particular gene/genes
  3. 4. two different alleles for gene/genes.
  4. 6. disorder of cell membranes
  5. 8. male plant gametes
  6. 10. only needs one to be inherited