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How soon does the fertilized egg begin to divide?
identical twins, if the egg divides in 2; identical triplets, if it divides into 3, and so on...
When a fertilized egg divides and forms a ball of cells it is known as what?
an embryo
What is the word that has the definition of one egg fertilized by one sperm divides?
Zygote
Which term refers to a fertilized human egg before it begins to divide?
The fertilized egg cell is called a zygote and divides to form an embryo.
What do you call the egg cell once it has been fertalized?
The egg cell is called a zygote once it has been fertilized.
How does a pregnant women have twins?
There are two ways a woman can have twins. One way is that a woman releases two eggs when she ovulates. When her and her partner have sex, both of the eggs become fertilized. The other way is after a woman has sex and the egg is fertilized, it divides in half. When the egg divides in half, this is when you get identical twins.
What is a fertilized egg cell called when it divides?
It is called a morula, and consists of the first 16 cells from the division of the zygote (fertilized egg). The individual undifferentiated cells are known as blastomeres, and form a hollow structure called a blastocyst. Once differentiation of cells occurs, the structure is simply called an embryo, and later a fetus.
Why identical twins are idenical?
Because 1 egg divides into 2 after being fertilized so the 2 babies are identical.
What is the first step in the development of an embryo from a fertilized egg?
The first step in the development of an embryo from a fertilized egg is cleavage, where the cell begins to divide repeatedly without increasing in size. This process results in a multicellular structure known as a morula.
Why are twins formed in one embryo?
Twins are formed when a fertilized egg divides into two embryos early in development. These embryos can develop into identical twins if they split before any differentiation occurs. Fraternal twins occur when two eggs are fertilized by two separate sperm, leading to separate embryos.
Why is it necessary for an egg to be fertilized?
It is necessary for an egg to be fertilized so the egg can hatch.
What is a fertilized female egg cell called?
A fertilized egg cell is when a sperm enters an egg. The result is a fertilized egg cell, or a zygote.
