Besides the low efficiency of cloning - just 1.7 per cent of embryos came to term - another challenge to creating transgenic dogs is controlling where in the nuclear DNA a foreign gene lands.
除了低克隆率-只有1.7%的胚胎能存活到最后阶段-创造转基因狗还有一个挑战即如何控制外部基因在核d NA中的植入位置。
Cloning could massively improve the agricultural industry as the technique of nuclear transfer improves.
随着核转移技术的提高,克隆能大规模改善农业工业。
Scientists have been warring over the issue of cloning a human child by body cell nuclear transfer.
科学家们就通过人体细胞核转移去克隆人的问题争论不休。
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