4h 47min, jul 31, 2001 y - Zygote is formed (Week 1)
Description:
This is a Zygote. This is week the sperm cell penetrates the egg making it fertile.
This zygote has a set of 46 chromosomes.
Added to timeline:
Date:
4h 47min, jul 31, 2001 y
Now
~ 22 years ago
Images: