我们以这些片段开始，然后通过同源重组将其组合到染色体中。
We start with these fragments, and then we have a homologous recombination system that reassembles those into a chromosome.
细胞工程主要包括体细胞融合，核移植，细胞器摄取和染色体片段的重组等。
The works mainly comprise the body cells, cell fusion, nuclear transplantation, cell uptake and the reorganization of chromosome segment.
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