When the membranes of the two pronuclei rupture, chromosomes go flying, and boom, you officially have a diploid zygote, which almost immediately starts mitosis.

当两个原核胞膜破裂时，染色体飞舞，嘣，你正式有了一个二倍体，几乎立即开始有丝分裂。

Meanwhile, the sperm's detached nucleus swells up to five times its original size, forming the male pronucleus, one of two sort of proto-nuclei that contain each gamete's genetic information.

与此同时，精分胞核膨胀到原来大小五倍，形成雄性原核，这是包含每个配遗传信息两种原始胞核之一。

The other one, the female pronucleus, takes shape from the nucleus of the ovum, and then the two then start to approach each other, pulled along a protein scaffolding, or mitotic spindle, between the two.

另一个，雌性原核，从卵胞核形成，然后两者开始相互接近，在两者之间沿着蛋白质支架或有丝分裂纺锤体拉动。