Bacterial endospores are produced by ________.
A. Mycoplasma
B. Staphylococcus
C. Entamoeba
D. Bacillus
Answer: D
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Which one of the following describes a tRNA molecule that specifically recognizes the codon for the amino acid histidine, but is covalently bound (charged with) to the amino acid serine?
A. histinyl-tRNASer B. histinyl-tRNAHis C. seryl-tRNASer D. seryl-tRNAHis
Rubisco has 16 subunits joined together to make a functional unit. Eight of the subunits are large, the
other 8 are small. What is the function of the small subunit?
a. The small subunits contain the reactant binding sites. b. It stabilizes the overall enzyme's structure but has no function by itself. c. The function of the small subunit is still unknown. d. It regulates the enzyme's rate of catalysis. e. The small subunits contain allosteric regulator binding sites.
Which of the following conditions is not necessary to maintain the Hardy-Weinberg equilibrium?
A. random mating B. large gene pool C. no migration D. no selection E. mutation
Graft rejection can be treated by preventing T cell responses with (azithroprine/cyclophosphamide/cyclosporine).
Fill in the blank(s) with the appropriate word(s).