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生物通
4 天
童明汉组合作实现在体外重构减数分裂DSB形成
减数分裂是存在于有性生殖生物中的特殊细胞分裂方式,为有性生殖的基础。同源重组是减数分裂中最重要的生物学事件,它不仅使来自亲本双方的遗传物质发生交换,增加了物种遗传的多样性;而且还能让同源染色体之间建立物理连接,以确保它们的精确分离,维持染色体数量的恒 ...
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