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Science Quiz
Scientists, discoveries, fields of study.
Question 1 of 2
What shape is formed by the two polynucleotide chains in a DNA molecule?
Triple helix
Double helix
Single strand
Circular loop
Question 2 of 2
What does the European Organization for Nuclear Research (CERN) operate?
A global satellite network
The largest particle physics lab
A deep-sea research station
The world's largest telescope
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