CFTR is a macromolecule that is composed of which of the following?
a. amino acids
b. nucleic acids
c. glucose
d. triglycerides
A
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Nonfermenting gram-negative rods isolated from respiratory samples from cystic fibrosis patients are difficult to identify using commercial systems. Thus, other testing platforms are being used to aid in accurate species identification. Which of the following systems has the advantage of a large curated database of proteomic profiles representative of many microorganisms and can give definitive
organism identification within minutes? a. Cellular fatty acid analysis b. MALDI-TOF mass spectrometry c. Multilocus sequence typing d. Ribotyping of 16S rRNA gene
In order for DNA molecules to undergo
recombination, a. they must be from the same species. b. their strands must separate as in replication. c. they must be cut and spliced at specific nucleotide sequences. d. one of the two DNA strands must be degraded. e. they must first be transcribed.
Microsporocytes divide by ____ to form ____
a. meiosis; megapores b. mitosis; endospores c. mitosis; microspores d. meiosis; microspores e. meiosis; endospores
Cellular wastes and excess ions are moved from the blood into nephrons by
A) reabsorption only. B) filtration only. C) secretion only. D) filtration and secretion. E) filtration and reabsorption.