本题目来源于试卷: Form and Function B.5 Cell Specialization，类别为 IB生物学
[单选题]
A patient receives a bone marrow t)vvudp ev ag(q1- (yp6ransplant from a 36 year/ w9 xwe ;nt/n gaf br2vt5wjmdj0*-m+ old. One of the functions of these cells is to produce red and whitxwj rtwawe2jbtv*/dg;n- m n/m905 f+e blood cells. What type of stem cells has the patient received?
A. Pluripotent stem cells
B. Totipotent stem cells
C. Differentiated stem cells
D. Multipotent stem cells
参考答案: D
本题详细解析:
Choice D is correct because multipotent stem cells can produce only cells of a particular tissue or organ. Choice A is incorrect because pluripotent stem cells are usually found in early embryos and are capable of differentiating to become any cell type found in the organism except for extra-embryonic tissues such as the placenta. Additionally, they are not found in bone marrow. Choice B is incorrect because totipotent stem cells are only found in early stages of embryonic development and can produce all cell types of the organism as well as extra-embryonic tissues such as the placenta. Choice C is incorrect because stem cells are by definition, undifferentiated.
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