You were once single celled
A one-minute summary of your development from single-celled to multi-celled, zipping through fertilization to form the one-celled zygote, DNA replication, mitotic cell division, and cell differentiation.
A one-minute summary of your development from single-celled to multi-celled, zipping through fertilization to form the one-celled zygote, DNA replication, mitotic cell division, and cell differentiation.
