Which of the following drugs target peptidoglycan?
A.
Penicillin
B.
Cephalosporin
C.
Vancomycin
D.
Bacitracin
E. All of the choices are correct.
E
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What is unusual about the 5' cap found on almost all eukaryotic mRNAs?
A. The nucelotide added is a guanine methylated at N7 and the bond is created between the phosphate group on the guanine and the phosphate on the terminal nucleotide B. The nucelotide added is a guanine methylated at N7 and the bond is a typical phosphodiester bond with the terminal nucleotide C. The nucelotide added is anadenine methylated at N7 and the bond is created between the phosphate group on the guanine and the phosphate on the terminal nucleotide D. The nucelotide added is an adenine methylated at N7 and the bond is typical phosphodiester bond with the terminal nucleotide
You have information about a particle that contains 7 protons, 8 neutrons, and 8 electrons. Which of the following statements would be true?
A) It has an atomic weight of 23. B) It is an ion. C) It has 8 electrons in its outermost shell. D) It has an atomic number of 15.
On what basis can cellular slime moulds be distinguished from plasmodial slime moulds?
a. reproductive structures b. spore formation c. food requirements d. nuclei per cell
One of the reasons study of nitrogen use in plants is of special interest is because
A. nitrogen in its atmospheric form is not useable by plants. B. nitrogen is limited in our atmosphere. C. nitrogen is not an essential element for plant growth. D. none of the forms of nitrogen is easily absorbed by plants. E. nitrogen is often toxic to plants.