Biology Crossword Puzzle

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Across
  1. 2. – Combines with phosphate to form the DNA backbone.
  2. 6. Bases – The building blocks that pair in DNA/RNA (A, T, C, G, U).
  3. 8. Synthesis – The process of building proteins from genetic code.
  4. 10. – Having two of the same alleles (like AA or aa).
  5. 13. – A nitrogen base that pairs with thymine in DNA.
  6. 14. – Molecules that carry genetic instructions.
  7. 15. – The process of making RNA from DNA.
  8. 17. – Having two different alleles (like Aa).
  9. 18. – Types of genetic crosses that show inheritance patterns.
  10. 19. – A trait that only shows when two of the same gene are present.
Down
  1. 1. – The step in protein synthesis where RNA makes proteins.
  2. 3. – Changes in DNA that may affect traits.
  3. 4. Helix – The twisted ladder shape of DNA.
  4. 5. – A nitrogen base that pairs with guanine.
  5. 7. – A single unit of DNA or RNA made of sugar, phosphate, and a base.
  6. 8. – Part of the DNA backbone along with sugar.
  7. 9. – Type of base pairing like A with T or A with U.
  8. 11. – A nitrogen base found only in DNA.
  9. 12. – A trait that shows even if only one gene is present.
  10. 16. – A nitrogen base that pairs with cytosine.