Across
- 3. how many chemical bases make up the code in our DNA
- 4. the science of how living things pass on traits
- 6. a scientist that studies genetics
- 7. Deoxyribonucleic Acid
Down
- 1. we have 23 pairs of these
- 2. chromosomes are made up of -------
- 5. chromosomes are found in the cell's -------
- 6. they are a small section of DNA