Fertilization of these two where these two cells join occurs in the distal part of the fallopian tube.

受精的过程,就是这两种细胞,在输卵管壶腹部相互结合

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That difference could have been generated during the process of fertilization.

这样的差异可能就发生在,受精的过程中

耶鲁公开课 - 生物医学工程探索课程节选

The result of fertilization now is a new cell that is the union of the sperm and the egg, and it's called the zygote and it contains the diploid number of chromosomes, genes.

受精就是产生,一个精卵结合的新细胞,称为受精卵,它含有二倍体的染色体基因

耶鲁公开课 - 生物医学工程探索课程节选