Across
- 2. forms side piece of 'ladder'
- 5. shape that is a twisted 'ladder'
- 7. base starting with G
- 9. shaped in a double helix
- 10. base starting with C
- 11. forms 'rungs' of ladder
Down
- 1. makes up tissue
- 3. base starting with A
- 4. study of genes
- 6. cells make up all these
- 8. base starting with T