Most sperm nuclei eventually developed into the male pronuclei, just like the normal sperms, except that sperm nuclei in a few zygotes kept dense throughout the fertilization process.

• 结果表明，精子经紫外线辐射进行遗传失活处理后，仍然能够进入卵子，并激动卵子发育，卵子能够正常完成两次减数分裂，与普通受精卵没有明显差别。