细胞核与细胞质的关系是生物学的基本问题，核移植和原核置换是研究核质关系的重要方法。
The relationship between cytoplasm and nucleus is the basic problem of biology, and nuclear transfer (nt) and pronuclear transplantation are the important methods to research their relations.
细胞表现为细胞皱缩、核质浓缩、核碎裂、细胞起泡以及凋亡小体形成等凋亡特征的形态学改变。
Apoptosis with nuclear chromatin condensation and fragmentation as well as cell shrinkage and the formation of apoptotic bodies were observed.
试验结果表明：胡萝卜雄性不育性遗传类型有两种，即细胞质不育型和核质互作不育型。
Results showed: There are two types of genetic heredity of male sterile in carrot, cytoplasmic and nuclear-cytoplasm interactive.
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