Rubbing a substance on uncoated paper should reveal if it contains
a. lipid.
b. carbohydrate.
c. protein.
d. sugar.
d
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Which of the following biomolecules interact with toll-like receptors (TLRs)?
A) bacterial LPS B) immunoglobulins C) major histocompatibility complex proteins D) none of these
The monarch butterfly is poisonous to birds; therefore, birds avoid eating them. Viceroy butterflies look very similar
to monarch butterflies, but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of ____.
a. resource partitioning b. competitive exclusion c. mimicry d. camouflage e. commensalism
In DNA replication,
A: DNA polymerases add deoxyribonucleotides only to the 3? end of a growing strand. B: the 3? end of the primer contains a free 3?-hydroxyl group. C: the strand grows from the 3? end to the 5? end. D: Both a and b E: Both b and c
Developing a novel synthetic antimicrobial drug OFTEN begins with identifying an essential ________ in the target organisms and then making slight chemical modifications to the structure to ensure that it is ________ incorporated
a. biosynthetic precursor / competitively b. biosynthetic precursor / noncompetitively c. cofactor / competitively d. cofactor / noncompetitively