The first life-related and carbon-based molecule, ____, was synthesized in vitro by a German chemist in 1825

a. RNA
b. DNA
c. protein
d. urea
e. ozone


ANSWER: d

Biology & Microbiology

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What key words does the question contain and what do they mean?

What will be an ideal response?

Biology & Microbiology

How would the process shown in the illustration be different if this were a plant cell instead of an animal cell?



a. If this were a plant cell, the cells would be larger.
b. If this were a plant cell, the process would result in four cells instead of two.
c. If this were a plant cell, a cell wall would form instead of a contractile ring.
d. If this were a plant cell, the color of the nucleus would be different.

Biology & Microbiology

Assuming one glucose molecule being metabolized, what is the net yield of ATP in the cell under aerobic conditions?

a. 1 b. 2 c. 32 d. 34 e. 36

Biology & Microbiology

In which situation might a cell not pass the G1/S checkpoint?

Biology & Microbiology