Which of the following macromolecules is composed of amino acids?
A. lipids
B. carboyhydrates
C. nucleic acids
D. proteins
E. All of the choices are correct.
D. proteins
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Four of the five answers listed below are related to pairing of chromosomes. Select the exception.
a. synapsis b. pairing of homologues c. interkinesis d. exchange of genes e. crossing over
The ____________________ is used to package and ship components to other organelles and out of the cytoplasm
Fill in the blank(s) with the appropriate word(s).
Put the events of the cell cycle into chronological order. Begin at the top with the events of the G1 phase.
What will be an ideal response?
Acetylcholinesterase is the enzyme that degrades acetylcholine. What effect on nerve transmission would occur following the administration of a chemical that inhibited acetylcholinesterase?
A) Continuous excitatory postsynaptic potentials would occur in the postsynaptic neuron. B) The presynaptic neuron would be inactivated. C) It would be identical to giving an anesthetic, but it would last permanently. D) Synaptic transmission would be prevented; muscle paralysis would occur. E) There would be no effect.