Biology

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Across
  1. 6. – Molecules that carry genetic instructions in cells.
  2. 7. – Having two identical alleles for a gene.
  3. 10. – Bases that match each other in DNA: A-T and C-G.
  4. 11. – Cell division that creates two identical cells.
  5. 12. Helix – The twisted ladder shape of a DNA molecule.
  6. 13. – A nitrogen base in DNA that pairs with adenine.
  7. 14. – Changes in the DNA sequence that may affect traits.
  8. 16. – The process of making proteins from RNA.
  9. 20. – The division of the cell’s cytoplasm to form two separate cells.
  10. 21. – The phase where a cell grows and copies its DNA before dividing.
  11. 22. – Part of the backbone of DNA and RNA that links the sugars together.
  12. 23. – The final stage of mitosis when two new nuclei form.
  13. 24. – A nitrogen base that pairs with cytosine in DNA and RNA.
  14. 26. – Having two different alleles for a gene.
Down
  1. 1. Bases – The parts of DNA and RNA that pair together to form genetic codes.
  2. 2. – A gene that shows its trait even if only one copy is present.
  3. 3. – A nitrogen base that pairs with thymine in DNA.
  4. 4. – A gene that only shows its trait when two copies are present.
  5. 5. – The building block of DNA and RNA, made of a sugar, phosphate, and base.
  6. 8. Synthesis – The process of building proteins using DNA and RNA instructions.
  7. 9. – Genetic crosses that show inheritance of one (mono) or two (di) traits.
  8. 15. – The process of making RNA from DNA.
  9. 17. – The stage of mitosis when chromosomes are pulled apart.
  10. 18. – The first stage of mitosis when chromosomes become visible.
  11. 19. – A nitrogen base that pairs with guanine in DNA and RNA.
  12. 24. G2 – Growth phases in the cell cycle before (G1) and after (G2) DNA is copied.
  13. 25. – The stage of mitosis where chromosomes line up in the middle of the cell.
  14. 27. – A part of DNA/RNA nucleotides that connects to phosphate and base.