When the function of the newly made polypeptide is to be secreted from the cell where it has been made, what must occur?
A) It must be translated by a ribosome that remains free of attachment to the ER.
B) Its signal sequence must target it to the ER, from which it goes to the Golgi.
C) It has a signal sequence that must be cleaved off before it can enter the ER.
D) It has a signal sequence that targets it to the cell's plasma membrane where it causes exocytosis.
E) Its signal sequence causes it to be encased in a vesicle as soon as it is translated.
An electron micrograph of an E. coli cell
A phage cross made by doubly infecting the host cell with parental phages
Membrane potential of a cell permeable to potassium only.
Surface molecules involved in the interaction between an antigen-presenting cell and a CD4+ T cell.
Illustration of enterohepatic recirculation. Certain drugs are secreted into bile and eventually are ...
Allele-specific oligonucleotide (ASO) testing for the -globin gene and sickle-cell anemia