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What is the diffence between identical twins and fraternal twins?
Identical twins come from one egg and one sperm. Fraternal twins come from two eggs and two sperm.
What The scientific name for fraternal twins.?
Identical twins are called monozygotic. Fraternal twins are called dizygotic.
What two things are needed to create fraternal twins?
Two eggs and Two Sperm.
Do identical twins develop from two different eggs that are fertilized by different sperm?
No, fraternal twins do.
Twins formed by the fertilization of two ova by two sperm are?
They would be fraternal twins. Identical twins are created when one sperm fertilized one egg, and hat egg then splits in two. Identical twins are always the same gender, while fraternal twins can be either gender, or a mix of the two.
Why can fraternal twins de different sexes while identical twins cannot?
To keep it simple and not get too technical, fraternal twins are from two eggs and two sperm that independently combine to produce a baby. Identical twins come from a single egg and sperm that divide to create two separate children. Gender is controlled by the males sperm and whether it contains the male genetic X chromosome. Since identical twins have the same sperm their genetic makeup is exactly the same (same egg and sperm used in development). Fraternal twins have two separate sperm and therefore it is possible one has the X chromosome and other does not.
Is identical twins are more closely related than tyhe fraternal twins?
Yes. Identical twins started out as one egg and one sperm cell and are genetically identical. Fraternal twins come from two eggs and two sperm cells and are no more closely related than any other sibling.
How are identical twins genetically from fraternal twins?
Identical twins are genetically the same, because they come from the same fertilized egg/sperm cell zygote, which happens to split into two viable zygotes. Fraternal twins, however, come from two different egg/sperm cell zygotes, that are concurrently fertilized and remain viable.
How fraternal twins are formed in the reproductive organ of a human being?
Fraternal twins, who come from two eggs, are formed when two separate eggs are fertilized by two separate sperm. In all other aspects, their development is the same.
What happens to a pregnant women for her to have twins?
Twins can be identical or fraternal (monozygotic or dizygotic). For identical twins, one sperm fertilizes an egg. The zygote divides into two identical embryos. For fraternal twins, two separate eggs are fertilized. They both implant on the uterine wall, forming two zygotes.
Identical twins happen when the two eggs are fertilised?
No. They have to come from the same egg and sperm to have the same DNA (and be identical). Fraternal twins are non identical twins and come from two separate eggs.
Why can fraternal twins be different genders but identical twins are are the same gender?
Identical Twins are the result of a single fertilized egg spliting in two producing two genetically identical children. Fraternal twins are the result of the mother producing two eggs each fertilized by a different sperm from the father. This can result in opposite sex twins.
