Ionotropic receptors found at synapses are operated via _____
A) ligand-gated ion channels
B) second-messenger-gated ion channels
C) electrical synapses
D) inhibitory, but not excitatory, synapses
E) excitatory, but not inhibitory, synapses
Answer: A
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Which statement best explains why embryos with a missing autosome are not found among spontaneously aborted fetuses?
A. These embryos occur less often than those with an extra autosome. B. Fertilization does not occur under these circumstances. C. Pregnancy is not recognized because an abortion occurs shortly after fertilization. D. These embryos do not get aborted but continue to live birth. E. None of the statements are correct.
Pentameric IgM activates complement up to 20-fold more effectively than does the hexameric form of IgM.
Answer the following statement true (T) or false (F)
A series of dilutions is the same as a series dilution.
Indicate whether the statement is true or false.
The asexual reproductive spores produced at the tips of hyphae and not enclosed in a sac are (conidiospores/ascospores/sporangiospores)
What will be an ideal response?