Which of the following pathways for complement activation is generally dependent upon the formation of antigen-antibody complexes?
A. Classical pathway
B. Lectin complement pathway
C. Alternative pathway
D. All of the choices are correct.
Answer: A
You might also like to view...
BRCA1 and BRCA2 are considered to be tumor-suppressor genes because _____
A) they prevent infection by tumor viruses that cause cancer B) their normal products participate in repair of DNA damage C) the mutant forms of either one of these prevent breast cancer D) the normal genes make estrogen receptors E) they block penetration of breast cells by chemical carcinogens
Tom recently started going to the gym, where he has taken up weight lifting. Increases in his
muscle mass are due to __________.
a. cell enlargement b. cell division c. an increase in the number of cells d. all of these
Each DNA strand serves as a _____during DNA synthesis
a. replicate b. substitute c. template d. source of nucleotides e. primer
The organelle involved in the oxygen-requiring process by which the energy harvested from macromolecules is used to generate ATP is the:
A. ER. B. mitochondria. C. chloroplasts. D. nucleus. E. lysosome.