Antibiotics that affect various strains of Gram-positive bacteria and various strains of Gram-negative bacteria are called
A. isolate usable.
B. stress-induced.
C. narrow-spectrum.
D. broad-spectrum.
D
You might also like to view...
Recombinant DNA is any DNA that ____
a. has been cut by restriction enzymes b. is at least four to eight base pairs in length c. has had its gene sequence rearranged d. consists of DNA from two or more organisms of the same or different species e. inserted into plasmids
Four of the following explain the area effect on island diversity. Which one is the exception?
a. Larger islands have more habitats. b. Smaller islands have more varied and higher elevations. c. Larger islands intercept more colonizers. d. Smaller islands have less complex topography. e. Smaller islands have a greater probability of a species becoming extinct.
Hershey and Chase used labeled DNA and protein to determine that DNA is the genetic material in bacteria
Indicate whether the statement is true or false
Electrons lost by chlorophyll are replaced by electrons donated from:
a. NADPH b. sunlight c. water d. carbon dioxide e. ATP