What role do lactic acid bacteria play in cheese production?
A) curd formation
B) production of holes in Swiss cheese
C) ripening the cheese
D) providing characteristic flavor and smell
E) Lactic acid bacteria carry out each of these roles in cheese production.
E
You might also like to view...
A wide variety of microorganisms are commercially used to manufacture ________ for human consumption.
A. sugars B. fatty acids C. vitamins D. none of the choices
Imagine you wanted to use a human genomic DNA library to clone the human gene for insulin. You will be using the rat insulin gene sequence as your DNA probe. In what order would you perform the following steps to accomplish this goal? 1
Use autoradiography to identify colonies containing DNA that hybridized to the probe 2. Grow transformed cells on media with antibiotics and X-gal for blue-white screening 3. Ligate genomic DNA and vector DNA 4. Cut genomic DNA and vector DNA with restriction enzymes 5. Hybridize library DNA with labeled probe for the rat insulin gene 6. Transform bacteria with recombinant plasmid A) 2, 3, 6, 5, 4, 1 B) 1, 2, 5, 6, 4, 3 C) 4, 3, 6, 2, 5, 1 D) 4, 3, 5, 2, 6, 1 E) 2, 6, 5, 3, 1, 4
Word Bacillus may refer to
a) rod-shaped cells. b) spherical cells. c) spiral-shaped cells. d) a specific genus. e) rod-shaped cells and a specific genus.
Bacteria of the Proteobacteria that are intracellular parasites are members of the
A) alphaproteobacteria. B) betaproteobacteria. C) gammaproteobacteria. D) alphaproteobacteria and betaproteobactria. E) alphaproteobacteria and gammaproteobacteria.