Across
- 2. deoxyribonucleic acid
- 6. The four types of nitrogen bases are adenine,thymine,guanine,and cytosine
- 9. biology that deals with the structure and function of the macromolecules
Down
- 1. the nucleotide triplets of DNA and RNA molecules that carry genetic information in living cells.
- 2. a pair of parallel helices intertwined about a common axis
- 3. the biology of the nervous system
- 4. a doctorate in any discipline except medicine
- 5. a expert of physics
- 7. any or all of the sciences
- 8. a scientist that studies living things
