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Chemistry
Which scientist was the first to discover that for DNA, "A=T and C=G"?
Chemistry
Which scientist was the first to discover that for DNA, "A=T and C=G"?
Erwin Chargaff
James Watson
Charles Darwin
Francis Crick
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What symbol appears on the periodic table for Calcium which has the atomic number 20?
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Which of these is an element?
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What is the center of an atom called?
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What is the unit defined as the energy needed to raise one gram of water by 1 degree Celsius?
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Which of these is an element?
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What energy is stored in the form of chemical compounds?
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What alkaline earth metal is formed from the decay of uranium?
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