How are pyrimidines structurally different from purines in DNA nucleotides?
A. Pyrimidines have a double-ring structure, while purines have a single-ring structure.
B. Pyrimidines and purines both have a double-ring structure.
C. Pyrimidines have a single-ring structure, while purines have a double-ring structure.
D. Pyrimidines and purines both have a single-ring structure.
Select your answer:
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Fish Health Management › View______________ is an infectious disease, that exists permanently in a particular region or population.
A. Endemic
B. Epidemiology
C. Epidemic
D. Pandemic
Physio Intro Practice › View
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
A. Type of plant, amount of music, and sunlight
B. Water, apple juice, milk
C. Plant growth