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stem cells, SC （干细胞)
提问人：网友lgdrjsk123
发布时间：2022-01-06
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胚胎干细胞(embryonic stem cells，ES cells)
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第2题
______________ stem cells can differentiate into only a few cell types, such as lymphoid or myeloid stem cells.
第4题
What distinguishes stem cells from other cell types？
A、Although all cell types can divide, only stem cells differentiate after division.
B、Stem cells are able to divide to produce populations of cells that differentiate into a related set of cells.
C、Stem cells divide asymmetrically to give rise to one daughter cell that remains a stem cell, and a second daughter cell that differentiates into one or more cell types.
D、Stem cells have a special type of cell division in which they form small stems that then pinch off to give rise to the daughter cell.
第5题
ES cells are
A、cells isolated from teratocarcinomas.
B、embryonic stem cells derived from the inner cell mass of the mammalian embryo.
C、epidermal stem cells found in the basal layer of the epidermis.
D、human stem cells generated by treatment of mature cell types with a specific combination of transcription factors.
第6题
_____________ stem cells can differentiate into a number of cell types, but only those of a closely related family of cells.
第7题
听力原文：Stem cells are undeveloped human cells that can grow into many or all of the diff
erent specialized cells in the human body. Although stem cells have been harvested from adults, the most versatile stem cells come from embryos. The main source of embryos is fertility clinics. Vitro fertilization, the process that produces test-tube babies, involves the fertilization of eggs to produce embryos outside the woman's body.
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Which of the following statements is NOT true of the passage？
A．It discusses fertility clinics.
B．It defines stem cells.
C．It mentions artificial fertilization.
D．It identifies the origins of stem cells.
第8题
Which gene transfer technique involves a tiny needle which is used to inject DNA into a cell lacking that DNA sequence
A、spermatogonial stem cells transplantation
B、liposome transfer
C、microinjection
D、gene targeting of embryo stem (ES) cells
第9题
According to the passage, stem cells refer to ______.A．cells that can become brain cells,
According to the passage, stem cells refer to ______.
A．cells that can become brain cells, blood cells or many other kinds of cell.
B．cells that can become what they want to be pretty much any other type of cell.
C．cells that are uncertain to become blood cells or brain cells when they grow up.
D．cells that have not decided when they grow up.
第10题
What distinguishes stem cells from other cell types？
A．Although all cell types can divide,only stem cells differentiate after division．
B．Stem cells are able to divide to produce populations of cells that differentiate into a related set of cells．
C．Stem cells divide asymmetrically to give rise to one daughter cell that remains a stem cell, and a second daughter cell that differentiates into one or more cell types．
D．Stem cells have a special type of cell division in which they form small stems that then pinch off to give rise to the daughter cell．
