A neutral atom must contain ________
A) an equal number of protons and neutrons
B) an equal number of protons, neutrons, and electrons
C) an equal number of protons and electrons
D) an equal number of neutrons and electrons
C
You might also like to view...
Which of the following affects the size of the clear zone in a disk diffusion test of antimicrobial susceptibility?
A. The solubility of the drug B. The diffusion rate of the drug C. The initial concentration of the drug D. All of the choices are correct.
Which of the following accounts for why eukaryotic cells are typically much larger than prokaryotic cells?
A. Since eukaryotic cells have more DNA, their cell volume has to be larger. B. A eukaryotic nucleus is so large that the cell has to be bigger. C. Reproducing sexually requires the cells to be larger. D. Using molecular motors, eukaryotic cells can transport materials throughout their cytoplasm much faster than prokaryotic cells can, which have to rely on simple diffusion. E. None of the answers options is correct..
The transition from transcriptional initiation to elongation involves
A) binding of sigma factor. B) release of sigma factor. C) release of RNA polymerase from DNA. D) binding of RNA polymerase to DNA. E) binding of rho factor.
Viral DNA is replicated by:
a. viral DNA. b. conjugation. c. bacterialDNA. d. using the host's metabolic machinery and energy.