1. DNA Review How would you describe the shape of a DNA molecule? - Spiral helix / twisted ladder

2. Why couldn’t we see this shape during our Strawberry DNA Extraction Lab? - Atomic structure of DNA is too small to see

3. What is this building block of DNA called? - Nucleotide

4. Label the parts: nucleotide, sugar, phosphate, nitrogenous base

5. What base does Adenine pair up with? - Thymine What base does Cytosine pair up with? - Guanine

6. What are chromosomes? - tightly coiled DNA molecule

7. How many chromosomes does the human species have in their cells? - 23 pairs (46)