Why are we constantly warned to make sure that hamburger and other meats are cooked thoroughly?
What will be an ideal response?
Ans: To warn people to provide enough heat to kill Escherichia coli O157:H7 contaminating the meat.
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Stable integration of foreign DNA into a bacterial host genome is generally accomplished through induced plasmid transformation than by natural uptake of free DNA fragments.
Answer the following statement true (T) or false (F)
All of the following are general components of the growth factor signaling pathway EXCEPT
A. tyrosine kinase-linked receptor. B. GRB2-Sos-Ras complexes. C. phosphorylated transcription factors. D. Raf-1. E. IP3 and Ca2+.
The growth of bacterial cultures is best described as
A. arithmetic growth. B. lag growth. C. logarithmic growth. D. cell division. E. replication.
The normal habitat for Vibrio cholerae is (humans/animals/water).
Fill in the blank(s) with the appropriate word(s).