Based on well-accepted international criteria, human embryo can be cultured in vitro until _______ days.
A. 7
B. 10
C. 14
D. as long as you want
查看答案
Which of the following are not stem cells?
A. muscle cells
B. neuron stem cells
C. iPSCs
D. bone marrow stem cells
Which of the following is not the potential application of ESCs:
A. Cell replacement therapies
B. Regenerative medicine
C. Drug discovery
D. Mental therapy
Human umbilical cord stem cells belong to ______________________.
A. totipotent stem cells
B. multipotent stem cells
C. differentiated cells
D. cancer stem cells
Embryonic stem cells (ESCs) aredescribedas:
A. havinganormalkaryotype
B. maintaininghightelomeraseactivity
C. exhibitingremarkablelong-termproliferativepotential
D. havingtheabilitytodifferentiateintoalltypesoftissuesandorgans
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