Ovum-sperm, blastocyst, zygote.
Blastocyst, ovum-sperm, zygote.
Blastocyst, zygote, ovum-sperm.
Ovum-sperm, zygote, blastocyst
The fertilised egg (zygote) divided repeatedly and moves down the fallopian tube to the uterus. Between 5 and 8 days after fertilisation, the blastocyst attaches to the lining of the uterus, usually near the top.
Post your Comments