A somatic cell having two of each type of chromosome has a(n) __________ chromosome number.
A) diploid
B) haploid
C) tetraploid
D) abnormal
Ans: A) diploid
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In two component regulatory systems, the response regulator typically receives a ________ from the sensor kinase when it has been activated.
A. methyl group B. phosphoryl group C. acetyl group D. pyruvate group
During glycolysis in the energy-investing stage, two ATP molecules are "spent" to convert glucose to the highly reactive molecule
A) fructose bisphosphate. B) NADH. C) pyruvate. D) glyceraldehyde 3-phosphate. E) FADH2.
Which of the following pairs is mismatched?
A) confocal microscope - produces a three-dimensional image B) darkfield microscope - uses visible light C) fluorescence microscope - uses a fluorescent light D) scanning electron microscope - produces a three-dimensional image E) scanning tunneling microscope - allows visualization of atoms
CO2 makes up about ________ percent of the atmosphere
A) 0.035 B) 35 C) 3.5 D) 37 E) 0.35