All of the following contribute to the generation of functional NK cells in the bone marrow with diverse KIR phenotypes except _____
a. competing bi-directional promoters of KIR genes
b. delay of KIR expression until NK cells enter the circulation
c. closely packed KIR genes on chromosome 19
d. establishment of a level balance between activating and inhibitory signals
e. gene silencing by DNA methylation
f. the number of KIR ligands brought by the HLA-A, -B, and -C tissue type.
B
You might also like to view...
What aspect of integrative medicine complicates attempts by patients to make an informed decision about seeking this type of care?
A. Integrative medicine is too costly. B. Integrative medicine disregards the patient's lifestyle choices. C. Integrative medicine is driven by market forces. D. Integrative medicine relies too heavily on prayer. E. Integrative medicine relies too heavily on diet and exercise.
A surgery to reverse a vasectomy is known as a vasovasostomy
Indicate whether the statement is true or false
The combining form that means conjunctiva is ____________________
Fill in the blank(s) with correct word
The combining form pupill/o- refers to the dark, round, central opening in the iris
Indicate whether the statement is true or false