2 ore 52 min, 30 ottob 2001 anni - Zygote is formed.
Descrizione:
A male and a female go through sexual intercourse. The male gamete or sperm and the female gamete or egg join and form a cell called zygote. Each of the gametes have 23 chromosomes, human zygotes contains 46 chromosomes.
Source
"GCSE Bitesize: Formation of Sex Cells." BBC, BBC,
www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/cells/mitosisrev2.shtml.
Aggiunto al nastro di tempo:
Data:
2 ore 52 min, 30 ottob 2001 anni
Adesso
~ 22 years ago
Immagini: