The complement system includes all of the following EXCEPT
a. a group of several plasma proteins.
b. induces a cascade of proteins that counteract invasion by coating the invading cells.
c. attracts phagocytic leukocytes to attack invading cells.
d. causes the lysis of the plasma membranes of invading cells.
e. blocks the virus from entering into healthy cells.
E
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Antibody and antigen are held to one another by covalent bonds
Indicate whether this statement is true or false.
Proteomics involves all of the following except
a. determining protein structure. b. determining protein function. c. determining protein location. d. determining protein sequence. e. determining protein interactions.
The ____ have cerata on their surface for gas exchange
a. nudibranchs b. limpets c. scaphpods d. chitons e. cephalopods
All epithelial cells in the inner lining of the large intestine that are heterozygous for an APC mutation ____
a. are able to control cell division with the second copy of the APC gene b. become cancerous c. require additional mutations in downstream genes to become cancerous d. cause the transition from polyps into colon cancer e. can partially escape control of the cell cycle and lead to the formation of clusters of polyps