In adaptive immune responses, which of the
following is NOT capable of acting as an
antigen-presenting cell?
a. T cell
b. macrophage
c. dendritic cell
d. B cell
e. all of these are capable
A
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What would result from a single nucleotide deletion (point mutation) within the coding sequence of a structural gene?
A. a silent point mutation with no deleterious effects B. a missense point mutation resulting in the change of one amino acid C. a nonsense point mutation resulting in the generation of a premature stop codon D. a frameshift mutation, producing a different amino acid sequence altogether E. All of the choices are possible.
Describe the relationships between induction, determination, and differentiation
What will be an ideal response?
The cuticle consists of:
a. cellulose. b. lignin. c. hemicellulose. d. starch. e. cutin.
Which of the following does not apply to the concept of herd immunity?