Who proposed that in any DNA molecule, A = T and G = C?

A. Franklin
B. Watson and Crick
C. Hershey and Chase
D. Chargaff


Answer: D

Biology & Microbiology

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“Solutes move from the blood in capillaries

into adjacent tubules.” This is a description of

a. filtration. b. reabsorption. c. secretion. d. elimination. e. excretion

Biology & Microbiology

The accumulating data from biogeography, comparative morphology, and fossil discoveries led early naturalists to

propose that species ____.

a. helped sculpt Earth's surface by foraging activities b. are all evolutionarily related c. had changed over time d. never went extinct e. were created in a perfect state

Biology & Microbiology

An example of a properly functioning homeostatic control system is seen when _____

A) the core body temperature of a runner rises gradually from 37°C to 45°C B) the kidneys excrete salt into the urine when dietary salt levels rise C) a blood cell shrinks when placed in a solution of salt and water D) the blood pressure increases in response to an increase in blood volume

Biology & Microbiology

What class do lobsters belong to?

A. Arachnida B. Arthropoda C. Chelicerata D. Crustacea E. Malacostraca

Biology & Microbiology