John was trying to reenact Le Chatelier's principle. To that end, he conducted four tests, test A, test B, test C, and test D. In test A, he didn't input any stress to a chemical system in equilibrium. But In test B, he put some stress to the same system. In test C, he observed a forward reaction, but in test D, he observed a reverse reaction. Would test D see higher or lower concentrations of the products than test C?
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Answer: lower

Doctors studied the blood of 2 sisters, Ann and Julie. Ann had sickle cell anemia, Julie did not. Which sister was homozygous dominant ( SS ) for the sickle cell trait?
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Answer: Julie

Scientists studied mutations on groups of fruit flies. Group A presented gemline mutations, while group B presented somatic mutations. Which group studied less about mutations that cannot be passed to the next generation?
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Answer:
Group A