The enzyme that breaks down acetylcholine within the synaptic cleft is
A. GABA.
B. maltase.
C. monoamine oxidase.
D. lipase.
E. acetylcholinesterase.
Answer: E
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A clinical specimen represents a portion or quantity of human material for testing, examination, or study in order to determine the presence or absence of specific microorganisms.
Answer the following statement true (T) or false (F)
Imagine that a mutation in a DNA molecule results in the codon CCU being changed to CCC. Both of these codons code for proline. What characteristic accounts for the fact that more than one codon can code for the same amino acid?
A) the ambiguity of the genetic code B) the redundancy of the genetic code C) the universality of the genetic code D) mutations in the genetic code
A homozygous red-eyed female Drosophila mates with a red-eyed male Drosophila. What proportion of the female offspring will have white eyes?
A. 75% B. 0% C. 100% D. 50% E. 25%
The ________ are fungi that lack mitochondria, peroxisomes, and centrioles.
Fill in the blank(s) with the appropriate word(s).