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Across 1. what would the other side of this DNA ladder look like... ACTTGCAAT 2. types of bonds that hold the nitrogen bases together 6. the scientist that used X-rays to photograph DNA 7. one of the structures that makes up the side of the DNA ladder 9. factors that control traits 10. holds 2 chromatids together 11. the shape of DNA 12. one of the biologists that determined the structure of DNA 15. very long organic molecules of C,H,N,and P 17. the process in which DNA copies itself 20. study of heredity 21. the type of sugar in RNA 22. this consists of a N base, a phosphate, and a sugar 23. the resulting DNA molecules made by replication are _________________ 25. half of a chromosome 26. one of the types of nucleic acids 27. the regular sequence of growth and division cells undergo

Down 3. the N base that pairs with cytosine 4. DNA is found in this structure in the nucleus 5. the name of the cells produced after the cell cycle 8. the type of sugar in DNA 13. replication occurs in this structure 14. the N base that pairs with thymine 16. the part of the cell cycle in which the cell grows and DNA replicates 18. rod shaped structure that is formed from chromatin 19. passing of characteristics from parents to offspring 24. plays a role in the production of proteins