The type of polio that involves the infection of the brain stem and medulla is
A. asymptomatic polio.
B. post-polio syndrome.
C. bulbar poliomyelitis.
D. minor polio.
E. non-paralytic polio.
Answer: C
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One surprise from comparative genome projects is that
A) all species examined so far have the same genes. B) we do not know the function of a great many genes. C) small organisms can have large genomes. D) large organisms can have small genomes.
Indels are
A) index deletions used to identify a species. B) parsimonious trees. C) transitions and transversions combined. D) small deletions or insertions that produce gaps in sequence alignments. E) the result of codon usage bias.
In cell-mediated immunity, what happens immediately after the infected cell displays the antigen-MHC complex?
a. A virus invades the cell. b. Specific T cytotoxic cells are activated. c. Effector T cytotoxic cells migrate to the infection site. d. Cytokines are released by T helper cells. e. Enzymes destroy the target cells.
The building blocks of proteins
What will be an ideal response?