An oligonucleotide is defined as a:
A. short, double-stranded DNA molecule of
known sequence.
B. short, single-stranded DNA molecule of
known sequence.
C. long, single-stranded DNA molecule of
unknown sequence.
D. short, single-stranded RNA molecule of
known sequence.
E. long, double-stranded RNA molecule of
unknown sequence.
B
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Home-canned foods should be boiled before consumption to prevent botulism. Considering that this treatment does NOT destroy endospores, why would it be helpful in preventing the disease?
A. Because it would destroy the vegetative cells, and only the vegetative cells cause the disease. B. Because it would at least weaken the endospores, making them more susceptible to elimination by our immune system. C. Because the heat would denature the botulism exotoxin and inactivate it. The exotoxin is what leads to the disease symptoms, so this would make the food safer. D. Because the heat would denature the botulism endotoxin and inactivate it. The endotoxin is what leads to the disease symptoms, so this would make the food safer.
In higher animals, including humans, meiosis results in the production of
a. egg cells (ova). b. gametes. c. sperm cells. d. all of the above.
Regulation of cardiac output is controlled by the cardiovascular center of the brain.
a. true b. false
Tay-Sachs disease is a genetic disorder in which fat deposits build up in nerve cells of the brain, leading to a slow loss of function. Because this disease usually strikes children under 1 year of age, the symptoms are not immediately apparent
Think about the symptoms that this condition would cause. List some that you think are possible. What would be the inevitable end result as the disease progresses?