In terms of V, D, and J segment arrangement, the T-cell receptor α-chain locus resembles the immunoglobulin locus, whereas the T-cell receptor β-chain locus resembles the immunoglobulin locus.
What is the fate of an immature B cell that encounters and h…
What is the fate of an immature B cell that encounters and has specificity for self antigen?
Single-celled prokaryotes
Single-celled prokaryotes
What are the basic structures that make up a nucleotide?
What are the basic structures that make up a nucleotide?
In a water molecule,
In a water molecule,
In the scientific method, what precedes the formation of the…
In the scientific method, what precedes the formation of the hypothesis?
Which level of protein structure do the α helix and the β pl…
Which level of protein structure do the α helix and the β pleated sheet represent?
Research indicates that ibuprofen, a drug used to relieve in…
Research indicates that ibuprofen, a drug used to relieve inflammation and pain, is a mixture of two enantiomers; that is, molecules that
Lactose, a sugar in milk, is composed of one glucose molecul…
Lactose, a sugar in milk, is composed of one glucose molecule joined by a glycosidic linkage to one galactose molecule. How is lactose classified?
The nucleus of a nitrogen atom contains 7 neutrons and 7 pro…
The nucleus of a nitrogen atom contains 7 neutrons and 7 protons. Which of the following is a correct statement concerning nitrogen?