You modify the gene for an integral membrane protein so that the cytoplasmic portions of the protein are deleted. When the gene is inserted in cells, what happens to the mobility of this protein in the membrane?
a) they often do not move at all
b) they often move much greater distances than the intact protein
c) they often move much smaller distances than the intact protein
d) they often flip to the opposite leaflet
Ans: b) they often move much greater distances than the intact protein
You might also like to view...
Which of the following statements about the big bang model is false? a. The big bang model proposes that the universe began when a single giant star exploded
b. Scientists can estimate the age of the universe by measuring the movements of galaxies. c. Evidence that all galaxies are moving away from one another supports the big bang model. d. The big bang is believed to have occurred 13 to 15 billion years ago.
The most common metabolic waste product is ____
a. urea b. carbon dioxide c. ammonia d. oxygen e. electrolytes
In an enzyme-catalyzed reaction, the reactant is called the
A. catalyst B. coenzyme C. substrate D. product
When a B cell binds to its specific antigen, it undergoes ________ to produce antibodies to the antigen
a. reproduction b. clonal expansion c. clonal anergy d. differentiation