干体 stem body,pushing body
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K. Bě lar( 1929)将有丝分裂后期的纺锤体的中间区( interzonal region),即子染色体群之间的部分称为干体。他曾提倡一种干体学说,即由于干体的伸长,可使染色体向两极移动。但现在已弄清染色体向两极的移动是由于着丝粒丝牵引所致。
互联网
K. Bě lar( 1929)将有丝分裂后期的纺锤体的中间区( interzonal region),即子染色体群之间的部分称为干体。他曾提倡一种干体学说,即由于干体的伸长,可使染色体向两极移动。但现在已弄清染色体向两极的移动是由于着丝粒丝牵引所致。
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