ETT Revision Worksheet 1: Principals of GV

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Across
  1. 6. The molecule that carries genetic instructions for all living things.
  2. 7. The specific type of sugar found in the backbone of DNA.
  3. 8. The position on a chromosome where a pair is held together.
  4. 10. An alternative form or variation of a gene (e.g., blue eyes vs. brown).
  5. 13. A genetically determined characteristic, such as eye color.
  6. 14. A threadlike structure of nucleic acids and protein found in the nucleus.
  7. 15. Identical copies of a chromosome held together before cell division (___ chromatids).
  8. 16. A section of a chromosome that codes for a specific trait.
Down
  1. 1. Along with sugar, this molecule makes up the sides of the DNA ladder
  2. 2. HELIX The name for the twisted ladder shape of a DNA molecule.
  3. 3. BOND The weak bond that holds nitrogen bases together in the center.
  4. 4. A pair of chromosomes (one from each parent) that are the same size and carry the same genes.
  5. 5. ACID The building blocks of proteins, determined by the DNA base sequence.
  6. 9. The smaller subunit or "building block" of a DNA molecule.
  7. 11. The molecules (A, T, C, G) that form the "rungs" of the DNA ladder.
  8. 12. A sequence of three DNA bases that codes for one amino acid.
  9. 17. The cell organelle where chromosomes and DNA are stored.