※ 引述《iceoo (後方cos77度角襲捲而來)》之銘言： : ※ 引述《Supervirus (很弱的病毒)》之銘言： : : [成大87轉學考] : : 34. In a series of immune system experiments, the thymus glands were removed : : from baby mice. : : Which of the following would you predict as a likely results? : : A. The mice suffered from numerous allergies : : B. The mice readily accepted tissue transplants : : C. The mice suffered from autoimmune : : D. The mice never developed cancerous tumors : : A,D是錯的,所以先刪去 : : 再來,我的想法是thymus gland可讓白血球分辨外來物跟自體細胞 : 你所謂的W.B.C.應該是專指T cell,因為不是所有的W.B.C.都在thymus gland : development 答案是(B) 因為將小老鼠的thymus glands切除,會使老鼠的T cell大幅降低,導致 免疫不全,無法對外來組織產生排斥作用,所以能accepted tissue transplants... : : 如果把thymus gland切除,就無法分辨 : : 所以結果是B or C 我就搞不清楚了... : : 白血球不能分辨哪些是外來物,所以無論看到啥都會攻擊嗎? : : 還是通通都不攻擊? --

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