Human fertilization and early development
7:59
Khan AcademySal Khan
Human fertilization and early development
Human fertilization and development begins with the race of hundreds of millions of sperm cells to fertilize an egg. The victorious sperm and egg unite, creating a zygote with genetic information from both parents. This single cell replicates, progressing through stages of a morula, blastocyst, embryo, and eventually a fetus. This complex ...
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