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Neural crest cells will contribute to which tissues or structures?
A、melanocytes in the skin
B、mesoderm of the face and skulll
C、peripheral nervous system
D、all of these
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A、melanocytes in the skin
B、mesoderm of the face and skulll
C、peripheral nervous system
D、all of these
A、Digestive system
B、Immune system
C、Circulatory system
D、Respiratory system
A、a single type of multipotent stem cell found in the bone marrow
B、differentiated cells that first developed in the fetal liver, but now reside in the bone marrow
C、division of differentiated cell types while circulating in the blood
D、stem cells that became committed to each specific blood celll type during embryonic development
A、apoptosis
B、commitment to the mveloid lineage
C、differentiation into muscle cells
D、formation of red blood cells
A、basal lanina
B、basal layer
C、dermis
D、keratinocyte layer
A、Mrf4
B、Myf5
C、MyoD
D、myogenin
A、continued development of the proximal structures, but no formation of new distal structures
B、degeneration of the limb bud
C、regeneration of a new apical ridge from adjacent epidermal tissue
D、regeneration of the entire limb bud from underlying mesoderm
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