Complement marks pathogens for destruction by all of the following except
A. C3B receptors
B. Classical pathway
C. Alternate pathway
D. TLR
E. MAC
Answer: D. TLR
You might also like to view...
The membrane of a gas vesicle is composed of
A) various phospholipids. B) proteins. C) carbohydrates. D) both glycoproteins and phospholipids.
Chromatids are
a. attached at the centriole. b. a pair of chromosomes, one from the mother and one from the father. c. attached at their centromeres. d. identical until crossing over occurs. e. both attached at their centromeres and identical until crossing over occurs.
Homeobox genes
A) encode proteins with a conserved sequence of amino acids. B) are important in development. C) are conserved in multicellular animals. D) are transcription factors. E) All of these
The abdominal segments of Drosophila have no appendages. Loss of function of bithorax genes results in appendages forming in these abdominal segments. Therefore, __________
A) bithorax mutations are necessarily recessive B) bithorax genes normally activate appendage-forming genes C) ultrabithorax usually acts to oppose bithorax genes D) bithorax normally activates a gene that negatively regulates appendages in the abdomen E) expression of bithorax wild-type genes suppresses all appendage formation