Genetics Crossword puzzle

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Across
  1. 2. – A tightly coiled structure of DNA and proteins
  2. 3. – The molecule that carries genetic information
  3. 5. – Having two identical alleles for a trait
  4. 8. – The genetic makeup of an organism
  5. 10. – A visual display of chromosomes
  6. 12. – Having two different alleles for a trait
  7. 15. – The square used to predict genetic outcomes
  8. 17. – An allele expressed only when two copies are present
  9. 18. – An allele that masks another allele
  10. 19. – A characteristic passed from parents to offspring
  11. 20. – A segment of DNA that codes for a trait
Down
  1. 1. – The passing of traits from one generation to the next
  2. 4. – An alternative form of a gene
  3. 6. – A change in the DNA sequence
  4. 7. – A three-nucleotide sequence that codes for an amino acid
  5. 9. – Cell division that produces gametes
  6. 11. – The physical expression of a trait
  7. 13. – The process of copying DNA
  8. 14. – Genes located close together on the same chromosome
  9. 16. – Cell division for growth and repair