Antigens are _____
A) proteins found in the blood that cause foreign blood cells to clump
B) proteins embedded in B cell membranes
C) proteins that consist of two light and two heavy polypeptide chains
D) foreign molecules that trigger an immune response
E) proteins released during an inflammatory response
Answer: D
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In feedback systems,
a. an integrator is involved. b. a set point may be established. c. receptors are required to monitor changing conditions. d. changes in either internal or external environmental conditions result in a response by the organism. e. all of these occur.
The X and Y chromosomes ____
a. are responsible for autosomal recessive inheritance b. will lead to color-blindness in all carriers c. are found paired with all 22 autosomal chromosomes d. are responsible for albinism e. play major roles in determining the sex of an individual
A molecule occupies the active site of an enzyme so that there can be no normal enzyme-substrate complex formed. This is called
A. enzyme completion. B. denaturation. C. enzyme inhibition. D. enzyme specificity.
Marfan Syndrome is a disorder with a collection of symptoms caused a single gene mutation. This genetic disorder is an example of ________.
Fill in the blank(s) with the appropriate word(s).