The phosphatases are weakin the fertilized ovum and morula but increase considerably during blastocystformation and differentiation of ectoderm and endoderm....

• 据现在所知,磷酸酶和核蛋白的形成及能的利用有关,所以观察胚胎的磷酸酶的改变和分布对于发生问题当可有进一步的认识。