34.診斷家禽感染白血病病毒時，可檢測下列何種群特異性抗原？
(A)p17
(B)p27
(C)p38
(D)p103

答案：登入後查看
統計： A(281), B(1940), C(321), D(67), E(0) #2038781

詳解 (共 2 筆)

#3638461

選項裡只有 p27 是真的，其他都來亂

The virion core contains 5 nonglycosylated proteins encoded by the gag/pro gene:
MA (matrix, p19);
p10;
CA (capsid, p27), which is the major group-specific antigen (Gag) in the core shell;
NC (nucleocapsid, p12), involved in RNA processing and packaging;
and PR (protease, p15), involved in cleavage of protein precursors.

5db5d510ec508.jpg

偵測 p27 基因的存在在診斷 ALV 上具有意義

The presence of virus is determined by the detection of ALV p27 by indirect biologic assays,
such as complement fixation (CF) for avian leukosis (COFAL),
ELISA for ALV, 
phenotypic mixing (PM),
resistance-inducing factor (RIF), 
and non-producer cell activation (NP). 

Ref.

Diseases of Poultry, 13th edition, page 555, 557, 585.

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