The envelope of the flu virus is made of
a. cellulose
b. capsid protein
c. phospholipids
d. peptidoglycan and capsid protein
e. phospholipid and capsid protein
Answer: c. phospholipids
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Choose the incorrect statement regarding chaperone-assisted protein folding in bacteria
A. The DnaJ/DnaK complex requires ATP to facilitate protein folding. B. DnaJ and DnaK will both bind the unfolded protein. C. A single DnaJ/DnaK complex is rarely sufficient for complete protein folding. D. GrpE stimulates binding of ATP to DnaJ. E. DnaJ prevents aggregation of unfolded polypeptides.
In an isolated population of fruit flies, 4 percent of the individuals have pink eyes, a homozygous recessive condition,
and 96 percent have the dominant black eye phenotype. What percentage of the population are heterozygotes?
a. 32% b. 16% c. 48% d. 88% e. 4%
Plant and animals cells are generally _______bacterial cells
a. larger than b. smaller than c. the same size as
Which of the following is NOT true about
cyanobacteria? a. Cyanobacteria have the same lightcapturing chlorophylls as plants. b. Chloroplasts evolved from ancient cyanobacteria. c. Cyanobacteria can fix carbon. d. Cyanobacteria can fix nitrogen. e. Cyanobacteria put nearly all of the nitrogen into Earth’s atmosphere