11. The nucleobases are important in base pairing of strands to form higher-level double helix. 12. In terms of base pairing , this has no effect. 13. Nucleotides may be protected from DMS modification by base pairing , tertiary contacts, or protein-RNA interactions. 14. They can cause mismatched base pairing during DNA replication. 15. One proposal is that antisense RNAs are involved in regulating gene expression through RNA-RNA base pairing . 16. Two DNA strands are held together by base pairing that allows the cytosine ( C ). 17. Mismatches in DNA base pairing can potentially result in dysfunctional proteins and could lead to cancer. 18. The base pairing and chain formation reactions, which form the daughter helix, are catalyzed by DNA polymerases. 19. This is sometimes less useful in RNA because base pairing is much more highly conserved than sequence. 20. This exact pairing is called base pairing .
