Which of the following is NOT a characteristic of a primary immune response?
A) The response is especially strong.
B) The response is short-lived.
C) Antigen-selected B or T cells differentiate into effector cells.
D) Antigen-selected B or T cells proliferate
E) It requires 10-17 days to initiate.
Answer: A) The response is especially strong.
You might also like to view...
An autosomal recessive disorder ____
a. requires that only one parent be a carrier b. displays its symptoms in heterozygotes c. is more frequent in males than females d. requires that both parents are carriers e. only affects females
Which tissue is composed of spindle-shaped contractile cells that are commonly found in the walls of tubular organs such as blood vessels?
a. squamous epithelium b. smooth muscle c. skeletal muscle d. cardiac muscle e. adipose tissue
After the publication of On the Origin of Species, the idea of evolution was generally accepted. What part of Darwin’s
theory of evolution, however, was fiercely debated?
a. natural selection b. environmental change c. gradual change d. the old age of the Earth e. limited resources
DNA microarrays reveal
A) if any genes are mutated in a given cell. B) if reverse transcriptase is present in a given cell. C) which genes are being expressed in a given cell. D) which genes are found in a given cell. E) if a particular gene was acquired via horizontal gene transfer.