Question

Bonds between these molecules are indicated by parentheses in dot-parentheses notation. Long-range bonds between these molecules form in the wrong order in a pseudoknot and can create a three-way junction in an aptamer. Pi stacking between these molecules stabilizes adjacent rungs of the stem of a (20[1])hairpin. (20[2])These heterocyclic molecules are linked by either (20[1])two or three hydrogen bonds (20[1])which (*) anneal (10[3])around 60 degrees Celsius, (10[3])but melt at 95 in a thermal cycler. (10[1])A nitrogen atom in these molecules is bonded (10[1])to the one-prime (10[1])carbon of (10[1])deoxyribose. (10[3])The purine class of these molecules bonds to (10[1])complementary (10[1])pyrimidines (10[2])to hold together the phosphodiester backbone. For 10 points, name these molecules that pair up in DNA. ■END■ (10[10])

ANSWER: DNA bases [or nitrogenous bases; or nucleobases; or nucleotides or nucleosides; accept base pairs; accept purines and pyrimidines until they are read; prompt on adenine or guanine or cytosine or thymine or A or C or G or T by asking “what class of molecules?”; prompt on nucleic acids or DNAs or RNAs or primers or oligonucleotides by asking “which part of the nucleic acid?”]
<David Bass, Science - Chemistry&gt; ~27415~ &lt;Editor: Adam Silverman>
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Summary

TournamentEditionExact Match?TUHConv. %Power %Neg %Average Buzz
2024 PACE NSC06/08/2024Y32100%16%0%84.97