Crossword puzzle

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Across
  1. 3. – Cell division for growth
  2. 4. – Process of producing offspring
  3. 8. – Cell with two chromosome sets
  4. 9. – Study of heredity
  5. 10. – Cell with one chromosome set
Down
  1. 1. – Joining of gametes during fertilisation
  2. 2. – Differences among individuals
  3. 5. – Character passed from parents
  4. 6. – Type of reproduction involving two parents
  5. 7. – Cell division forming gametes