Chapter 6 adaptive quiz Flashcards
1
Q
Extensive _____ trimming is more common at the _____ heavy-chain V gene joints than at the light-chain V-J joint.
A
exonuclease, two
2
Q
Cells destined to become αβ T cells proceed to the DP stage where they are tested for their ability to recognize antigen displayed by immune system cells (_____ selection) without inducing autoimmunity (_____ selection).
A
positive, negative
3
Q
Like the heavy chain, the light chain:
A
can be rearranged on both homologous chromosomes.
4
Q
Only three of the proteins implicated in VJ recombination are unique to lymphocytes: _____, _____, and terminal deoxynucleotidyl transferase.
A
Rag 1 and Rag 2
5
Q
In both heavy and light chains:
A
the number of V regions is greater than the number of J regions.
