Protein located in the plasma membrane or within the cell; binds to a substance that alters some metabolic aspect of the cell.
What will be an ideal response?
receptor protein
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If two genes have a lod score of 1.2, this indicates that they are most likely_____
a. disease causing genesb. linked on an autosome c. X-linked d. on separate chromosomes e. in separate genomes
A bacterium may acquire some foreign genetic information
A membrane-bound electron carrier found in the electron transport systems of both aerobic respiration and photosynthesis
(A) Cytochrome (B) FADH2 (C) NAD+ (D) NADP+ (E) Oxygen (O2)
Which statement shows an example of a commensal species in one host becoming a pathogenic species in another host?
A) New infectious diseases are due to increases in host tropism. B) C. difficile flourishes in the large intestine after antibiotic therapy. C) E. coli lives harmlessly in the appendix but will be attacked by the immune system if it invades the abdominal cavity. D) Shigella flexneri preferably infects the tissues of humans and other primates. E) Up to 30% of pregnant women harbor Group B streptococci in the vagina to no ill effect, but when transmitted to their newborns, a proportion of babies develop serious infection.