What does the plaque assay determine?
A) if the phage is a lysogenic phage
B) type of bacteriophage in a sample
C) if the virus can grow in a live animal host
D) if a given drug will be useful in treating a given viral infection
E) number of bacteriophage in a sample
Answer: E
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Why are dwarf pea plants shorter than other pea plants?
a. because they produce very little gibberellin hormone b. because they have an altered gibberellin amino acid sequence c. because the enzymes involved in gibberellin synthesis are missing d. because they cannot make any gibberellin
No cases of variant Creutzfeldt-Jakob syndrome linked to eating infected cows have occurred in the United States.
Answer the following statement true (T) or false (F)
Which of the following is not a role the skeletal system plays in helping the cardiovascular system?
A. protects the brain B. protects the heart C. stores calcium for blood clotting D. regulates the contraction of the heart E. assists muscles in movement of blood in veins
Which cells play the greatest role in allergic symptoms?
a. T cells b. monocytes c. plasma cells d. mast cells e. eosinophils