Genetic coding for virulence factors can be transferred among various bacteria by:
A. single-stranded DNA.
B. plasmids.
C. double-stranded RNA.
D. chromosomal DNA
Answer: B. plasmids.
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Glial cells function to ____
a. conduct electrical impulses b. support and nourish neurons c. secrete collagen fibers into the extracellular matrix d. release secretions from a free surface e. move ions across the cell membrane
Which of the following chemicals plays a part in a man's erection?
a. carbon dioxide b. carbon monoxide c. nitric oxide d. phosphoric acid e. carbonic acid
Embryo splitting as a means of reproductive cloning is typically done at the 32- or 64-cell stage
Indicate whether the statement is true or false
Please choose the correct feature of Balantidium coli
A) The infection is not treated and the death rate is high B) A preventative vaccine is given during early childhood C) The protozoan is passed from infected cats to humans D) Causes neurological symptoms E) One of the only pathogenic ciliates to cause human disease