[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
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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作者: iceoo (後方cos77度角襲捲而來) 看板: TransBioChem
標題: Re: [考題] 免疫
時間: Wed Feb 9 08:42:53 2005
※ 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
: 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?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.216.81.176
> -------------------------------------------------------------------------- <
作者: iceoo (後方cos77度角襲捲而來) 看板: TransBioChem
標題: Re: [考題] 免疫
時間: Wed Feb 9 08:47:22 2005
※ 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?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.216.81.176