Which of the following is the most serious toxin involving acetylcholine?
a. Botulinum
b. Prairie rattlesnake venom
c. Hemicholinium-3 (HC-3)
d. Black widow spider venom
Ans: a. Botulism
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In a frog in which the diploid number of chromosomes per cell is 24, what is the total number of
chromatids present per cell in Prophase II after the first division and cytokinesis?
a. 0 b. 6 c. 12 d. 24 e. 48
Why is ocean acidification problematic for some marine life?
A. It decreases the stratification of water temperatures, so that marine organisms have smaller ranges in which to survive. B. It decreases the availability of oxygen in the water for the respiration needs of aquatic organisms. C. The acidification causes metals to precipitate out of the water and deposit on the backs of aquatic organisms. D. It decreases the amount of carbonate in the oceans, making the creation of shells and other hard structures difficult for marine life.
The extinction of the dinosaurs is thought to be due to a massive meteorite impact
Indicate whether the statement is true or false
Why was Haemophilus influenzae chosen by Craig Venter to test his whole-genome shotgun sequencing method?
What will be an ideal response?