Zygote A zygote is the product of the fusion of an egg and a sperm. It contains two copies of each chromosome , one from each parent. Egg and sperms cells, on the other hand, each contain only one copy of each chromosome. The zygote

to form single cell called a zygote , which then starts dividing, becoming an embryo . When the zygote/embryo is only a few cells large, it is implanted in the woman's uterus, and, if successful, will develop as a normal embryo. Related Topics:

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terms such as 'zygote ', 'pre-embryo', 'embryo', and 'foetus'. What is of indispensable value here for our ethical deliberation is the Vatican's unflinching resolve to protect the dignity of human personhood. Yet, the questions