17) Which of the following steps is not required for signal-based targeting of proteins to the nucleus?
a) Translation occurs using ribosomes
b) The newly synthesized protein contains a nuclear localization sequence that directs it to the nucleus.
c) The protein is converted to a linear form using heat shock proteins.
d) importin binds to the protein and together they pass through the nuclear pore complex.
e) All the above steps are required for protein targeting to the nucleus.
35) Which of the following statements regarding humoral immune represents correct?
a) Humoral immune responses are carried out by cytotoxic T cells and macrophages.
b) Humoral immune responses are mediated by plasma cells that secrete antibodies.
c) Humoral immune responses are carried out by cell of the innate immune system.
d) Humoral immune responses primarily function to eliminate cancer cells and virally infection.