An individual can receive injections of an antiserum or purified antibodies derived from an immune individual
Indicate whether the statement is true or false.
Answer: TRUE
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A patient in his forties is diagnosed with Huntington disease. The patient's mother is healthy and a genetic evaluation shows 25 and 26 CAG repeats within her HTT alleles
The patient's father died at age 24 when the patient was 2 and no genetic evaluation can be done. It is most likely that: A. the father was heterozygous for the defective HTT allele. B. the father was homozygous for the defective HTT allele. C. the mother is a carrier for the defective HTT allele. D. the HTT gene acquired additional CAG repeats during the 40 years of the patient's life.
Many organic compounds essential for life do NOT
assemble spontaneously in the presence of a. high concentrations of hydrogen. b. high concentrations of oxygen. c. low concentrations of carbon dioxide. d. nitrogen. e. hydrogen sulfide.
What are the ecological consequences of acidification of rain and oceans?
A) They damage the health of ecosystems. B) They do not have any consequences on ecosystems. C) They improve the health of ecosystems. D) Acid rain damages ecosystems, but ocean acidification improves the health of oceans.
Answer the following questions true (T) or false (F)
1. Kinins block histamine's actions and therefore serve as anti-inflammatory drugs. 2. Pyretic drugs like aspirin, ibuprofen, and acetaminophen are all commonly used to reduce fever by increasing the production of prostaglandins in the hypothalamus. 3. Both the cellular and humoral branches of adaptive immunity have the goal of eliminating an identified antigen, but only the humoral branch develops a memory of the antigen so that future responses are faster.