問題詳情
30. The diversity of MHC class I and II genes is due to____________. (Select all that apply.)
(A) gene rearrangements similar to those observed in T-cell receptor genes
(B) the existence of many similar genes encoding MHC molecules in the genome
(C) somatic hypermutation
(D) extensive polymorphism at many of the alleles
(E) jsotype switching
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增