no. sometimes more than one egg matures and both or more can be fertilized. then the infants are sister and sister or brother and sister or brother and brother, not true twins.
Fertilization of an egg happens before it is laid.
in the egg cell after fertilization...or after fertilization and before birth
The process of uniting an egg with sperm is called fertilization.
Sperm have about three days to make it to the egg for fertilization before the egg passes out of the uterus and dies.
After fertilization while the egg is developing into an embryo, a cell may split off and form a separate fetus.
a dark egg It is an egg that is alive.
Fertilization
The joining of an egg cell and a sperm cell is called fertilization
When sperm fuses with egg it is called fertilization .
Fertilization.
When sperm fuses with egg it is called fertilization .
fertilization