Which of the following is not true of coagulation
A. It involves direct contact between cells
B. It transfers genes for drug resistance
C. It transfers genes for resistance to heavy metals
D. It transfers genes for a polysaccharide capsule
E. The door retains a copy of the transferred genes
Ans: D. It transfers genes for a polysaccharide capsule
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The sickle-cell mutant allele and wild-type ?-globin allele are codominant
Indicate whether the statement is true or false
Temperate viruses:a
always destroy their host immediately. b. are considered virulent. c. do not always destroy their host. d. do not undergo a lysogenic cycle. e. undergo a lytic cycle.
The axon hillock in the presynaptic neuron fire based on temporal and spatial summation of inputs
a. true b. false