Any substance that produces an inappropriate response of the immune system is referred to as a(an)
A) allergen.
B) antibody.
C) plasma cell.
D) allergy.
E) perforin.
A
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The ploidy of cells characteristic of an aneuploid is best represented by which of the following?
A) 2n + 1 B) n C) 2n D) 4n E) both choices B and C
A pine tree is a ____
a. flowering plant b. seedless plant c. sporophyte
d. bryophyte e. gametophyte
Most components of energy conversion systems evolved very early; thus, the most fundamental
aspects of energy metabolism tend to be: a. quite different among a diverse group of organisms. b. very different among plants and animals. c. the same among the autotrophs but different among heterotrophs. d. the same among prokaryotes but different among eukaryotes. e. very similar in a wide range of different organisms.
The relative fitness values of three genotypes are: wAA = 1.0, wAa = 1.0, and waa = 0.7. What is the predicted equilibrium allele frequency if the rate of mutation of A to a is 2 x 10^-5?
a. q hat = 0.022 and p hat = 0.978 b. q hat = 0.008 and p hat = 0.992 c. q hat = 0.005 and p hat = 0.995 d. q hat = 0.011 and p hat = 0.989