____ is a dangerous bacteria that infects wounds
a. Clostridium botulinum
b. Clostridium tetani
c. Bacillus anthracis
d. Heliobacter pylor
e. Thermus aquaticus
ANSWER: b
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An action potential is a sudden, temporary reversal of voltage across the cell membrane of a neuron.
a. true b. false
Lactic acid is generated from ________ acid
Fill in the blank(s) with the appropriate word(s).
Your research project involves the characterization of a recently identified transcription factor. As part of your project, you want to determine if this transcription factor binds directly to any of the general transcription factors. Unfortunately, you are having trouble expressing the full-length protein. What approach may help achieve your research goal?
A. You must find a way to express the full-length protein, since transcription factor functions do not lie in separate domains. B. Express and purify only the DNA-binding domain, and test for binding. C. Identify the RNA that mediates the protein-protein binding. D. Express and purify only the activation domain, and test for binding.
An allele of RNA polymerase in Drosophila demonstrates a recessive lethal inheritance pattern. Which of the following is true?
A) Homozygous lethal genes will always demonstrate a gain of function pattern. B) The threshold effect is not seen in recessive lethality. C) Two homozygous recessive parents will have 100% homozygous offspring. D) Homozygous recessive offspring will never be seen. E) Two heterozygotes will have offspring with a 2:1 pattern.