An antigen is
A) a molecule that can elicit an immune response.
B) a nucleic acid only.
C) a protein or nucleic acid.
D) a protective protein that the immune system produces.
A) a molecule that can elicit an immune response.
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Consider the following electronegativity values: Boron (B) = 1.8 Carbon (C) = 2.5 Chlorine (Cl) = 3.2 Selenium (Se) = 2.6 Which of the following bonds is the most polar?
A. Se-Cl B. C-Cl C. B-Cl D. cannot determine from the information provided
Many antibiotics work by inhibiting the synthesis of petidoglycan, a component of the bacterial cell wall. What is a possible mechanism of action for anti-fungal drugs?
A. inhibiting the synthesis of peptidoglycan in fungi B. inhibiting the synthesis of cellulose in fungi C. inhibiting the synthesis of chitin in fungi D. inhibiting the synthesis of lignin in fungi
Restriction endonucleases recognize and clip DNA base sequences called ________.
A. introns B. palindromes C. genes D. exons E. codons
During glycolysis, phosphate groups are transferred to glucose from ATP. This process is called ____
a. ionization b. polymerization c. phosphorylation d. dephosphorylation e. anabolism