The antigen binds to the __________ of an antibody
a. constant region
b. neutral region
c. variable region
d. active site
e. charged region
Answer: c
You might also like to view...
The characteristic ____________________ of a radioisotope allows us to determine the age of rocks and fossils using
a technique called ____________________. Fill in the blank(s) with the appropriate word(s).
Energy-requiring reactions can occur in biological systems because they can be coupled with reactions that are
A) unlikely. B) not spontaneous. C) endergonic. D) exergonic. E) spontaneous and endergonic.
Which of the following is NOT one of the body's nonspecific defenses against pathogens?
A) complement system B) inflammation C) natural killer cell D) cytotoxic T cell E) interferons
The movement of the organic products of photosynthesis from the leaf to the roots is the result of what process?
a. Cellular respiration b. Replication c. Germination d. Transcription e. Translocation