The antigen-binding region of an antibody is formed by the
A) constant region composed of a heavy chain and a light chain.
B) variable region composed of two heavy chains.
C) variable region composed of two light chains.
D) variable region composed of a heavy chain and a light chain.
E) constant region composed of two light chains.
Answer: D) variable region composed of a heavy chain and a light chain.
You might also like to view...
A study of the human gut performed in 1982 used various types of plates under different growth conditions to describe and enumerate the microbes in the human gut. They concluded that the majority of the microbes in the human gut are Gammaproteobacteria
A study conducted in 2010 using next-generation sequencing to characterize 16S rRNA sequences concluded that the majority of the microbes in the human gut are Firmicutes and Bacteriodetes. Why did these studies have different conclusions? Which study do you think is most accurate? What will be an ideal response?
Transgenic crops are planted in _____ countries, with the amount of land dedicated to such crops _____ every year
a. more than 50; remaining the same b. more than 25; decreasing c. less than10; increasing d. more than 25; increasing e. just under 25; increasing
A ____ indicates that evolution is occurring.
A. stable population size B. high rate of migration C. constant environment D. change in gene frequency
Exposure to (Aspergillus/Candida/Microsporum) species most commonly causes allergies.
Fill in the blank(s) with the appropriate word(s).