Final Answer:
1. nucleotides
2. phosphate group, deoxyribose sugar, nitrogenous base
3. adenine (A), thymine (T), cytosine (C), guanine (G)
4. A–T and C–G
5. double helix
6. complementary base pairing
7. hydrogen bonds
8. antiparallel
9. 5′ to 3′
10. replication
11. semi-conservative
12. DNA polymerase
13. leading strand (continuous), lagging strand (Okazaki fragments)
14. helicase
15. primase
16. RNA primer
17. ligase
18. proofreading (3′→5′ exonuclease activity)
19. mutations
20. yes — because each strand serves as a template for a new complementary strand
Parent Tip: Review the logic above to help your child master the concept of double helix coloring worksheet.