fertilized egg,embryo, and fetus
embryo, fetus, zygote, child, adolescent, infant, adult
zygote, embryo, fetus, infant, child, adolescent, adult (young adult, middle adult, elderly)
Haploid Gametes Egg Sperm Fertilization Zygote Blastula Gastrula Embryo Fetus
in this order: zygote, embryo, fetus (after fertalization takes place)
Fetus
The egg is released from the ovary into the ampullae of the fallopian tubes. In the tubes, the egg may be fertilized.
zygote-tissues-organs-fetus
meiosis...fertilization...mitosis
meiosis...fertilization...mitosis
Embryo biopsy is the process of removing a cell from an embryo, usually at three days of development. Preimplantation genetic diagnosis (PGD) is the act of performing genetic testing on the cell that has been removed from the embryo before that embryo is transferred to the uterus. In other words, embryo biopsy is necessary in order to perform PGD. Shannon DeWall, MS, CGC Genetic Counselor and Program Coordinator Genesis Genetics Institute
Pregancy starts when the egg and sperm come together and become 1. It is called an embryo from the moment of fertilisation/conception until the end of the 8th week of gestational age, whereafter it is instead called a fetus. Example; if the egg is fertilized on the 20th day after your last period, the doctor will determin the age from answers you give and the size of the embryo after a set amount of time.
Fertilized egg, trochophore, veliger, adult