Bacteriophages derive all of the following from the host cell EXCEPT
A) lysozyme.
B) tRNA.
C) amino acids.
D) nucleotides.
E) ATP.
A
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The proton motive force is most often generated by splitting of H2
Indicate whether the statement is true or false.
In horses, there are four alleles at the A locus. Arranged in dominance sequence they are:A
(wild), ab (bay), ac (brown), ad (black) If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what are the genotypes of the parents; what type of offspring would be produced; and in what proportion? What will be an ideal response?
Many chaperones are called heat-shock proteins because they
a. are expressed at higher levels after a heat shock than at normal growth conditions. b. cause fever in mammals. c. misfold during a heat shock. d. denature at high temperatures.
Which of the following would be a possible consequence of a disorder that selectively destroys the T regulatory cells in a patient?
A) impaired antibody production B) autoimmune diseases C) frequent infections with parasitic pathogens D) increased incidence of certain cancers E) frequent infections with viral and fungal pathogens