In AIDS, the body's reduced capacity for
adaptive immunity is due directly to the
destruction of ____ cells.
a. NK
b. B
c. helper T
d. T
e. dendritic
C
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What do osmosis and diffusion have in common?
a. Both process uses ATP as their energy source. b. Both use glucose as their energy source. c. Neither use energy. d. They have nothing in common.
The additive effect of one neuron sending many EPSPs to another neuron over a brief period of time is
called spatial summation.
Indicate whether the statement is true or false.A monohybrid (one-gene) cross yields 4 genotypic classes, and a dihybrid (two-gene) cross yields 16. How many classes are expected from a tetrahybrid (four-gene) cross?
What will be an ideal response?
Sister chromatid exchanges increase in frequency in the presence of X rays, certain viruses, ultraviolet light, and certain chemical mutagens. In what autosomal recessive disorder is there known to be an increase in sister chromatid exchanges?
What will be an ideal response?