問題詳情
19. The vast diversity of immunoglobulin sequences is explained by:
(A) DNA rearrangement.
(B) large sections of DNA devoted to immunoglobulin formation.
(C) susceptibility of the immunoglobulin genes to mutation.
(D) sensitivity of formed immunoglobulin proteins to environmental factors.
(E) All of the above.
參考答案
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中