Lysol works by disrupting bacterial proteins and the lipid membrane, it has a broad spectrum of action. Triclosan is a disinfectant that works by acting on a single specific protein that bacteria require to make an effective lipid membrane. Triclosan has a specific target and does not have a broad spectrum of action. Is a microorganism more likely to develop resistance to a disinfectant that has a broad spectrum of action such as lysol, or a disinfectant that has a specific target in a bacterial cell such as Triclosan?
A) A disinfectant that has a broad spectrum of action.
B) A disinfectant that has a specific target in a bacterial cell.
B) A disinfectant that has a specific target in a bacterial cell.
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The ribosome binding site is located ____ and is where ____
a. at the start codon; the large ribosome subunit binds the mRNA-tRNA complex in prokaryotes b. just upstream of the start codon; the large ribosome subunit binds the mRNA in eukaryotes c. on initiator tRNA; the large ribosome subunit binds the mRNA-tRNA complex in eukaryotes d. on aminoacyl-tRNA; the large ribosome subunit binds the tRNA in prokaryotes e. just upstream of the start codon; the small ribosome subunit binds the mRNA in prokaryotes
Small RNAs can regulate gene expression by
A) binding target RNAs and inhibiting translation. B) binding rho and preventing termination. C) binding target promoter regions and preventing transcription. D) binding target operator regions and preventing transcription.
The suffix -emia means ________.
A. pertaining to B. tumor C. an inflammation D. blood E. a disease or morbid process
Fiber content of the diet can be increased by adding
a. fresh fruits. b. fish and poultry. c. eggs. d. whole grains and cereals. e. Both a and