- If the ovum is fertilized by a spermatozoon carrying a Y chromosome, a male zygote is formed.
- Implantation occurs when the cellular walls of the blastocyte implants itself in the endometrium, usually 7 to 9 days after fertilization.
- Implantation occurs when the cellular walls of the blastocyte implants itself in the endometrium, usually 7 to 9 days after fertilization.
- Implantation occurs when the cellular walls of the blastocyte implants itself in the endometrium, usually 7 to 9 days after fertilization.
- Implantation occurs when the cellular walls of the blastocyte implants itself in the endometrium, usually 7 to 9 days after fertilization.
