The stringent response in bacteria is transcriptional regulation coordinated with:
A. amino acid concentrations.
B. availability of glucose.
C. DNA damage.
D. changes in pH.
A
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Cardiac muscle cells are connected by special junctions called intercalated discs. Intercalated discs provide strength between cells of tissues which exhibit high mechanical stress, strong flexible connections between tissue cells, and electrical excitability between the cells. Using this information, which junctions are present in intercalated discs?
A. Tight, plasmodesmata, and adherens B. Tight, plasmodesmata, and desmosomes C. Gap, adherens, and desmosomes D. Gap, desmosomes, and hemidesmosomes E. Adherens, tight, and gap
Which plant hormone will cause the stomata to close?
a. Ethylene b. Auxins c. Cytokinins d. Abscisic acid e. Gibberellins
What are the DNA "bonding rules" that allow DNA to maintain its specific structure?
a. A only bonds to T. b. C only bonds to G. c. A only bonds to U. d. Both a and b above.
What is the danger of Ug99 to global food production? What will be an ideal response?