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Fraternal twins are produced when the female double ovulates and a different sperm fertilizes each egg. They can be the same sex or each a different sex. They are, of course nonidentical. There is a 1 in about 80 chance of a twin pregnancy although
the tendency runs in families. Identical twins are produced from a single fertilized egg that divides into two separate conceptus during early development.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoIn general, it is believed that having fraternal (dizygotic) twins can be genetic and that this predisposition can cause women to be more likely to release more than one egg at a time, offering the chance for more than one egg to be fertilized at a time. Other factors that can increase your chances of having fraternal twins include using fertility treatments and a mother being over 35-40 years old when she becomes pregnant.
Wiki User
∙ 10y agoIdentical twins are when one egg in the fallopian tube is fertilized and then when it reaches the womb it splits into two eggs. Fraternal twins are made when two different eggs from each fallopian tube are fertilized at the same time.
Wiki User
∙ 9y agoFraternal twins can occur when the mother's ovaries release two eggs at the same time instead of one. If the eggs are fertilized, then fraternal twin embryos will develop.
Wiki User
∙ 13y agoInstead of the egg dividing in two like with identical twins, two different eggs are fertilized and grow at the same time, but separately.
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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.
How are twins born non-identical?
Non identical twins are formed when the mother releases two eggs and both those eggs are fertilised. hope this helps :)
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.
Are Twins developed from one zygote?
Non identical twins are formed when the mother releases two eggs and both those eggs are fertilised. hope this helps :)
Why would identical twins produce the same DNA fingerprint?
Identical twins are formed by the human egg splitting after being fertilized. The DNA also splits, and each new egg contains the DNA of the original. This means that the twins, once born, have identical DNA. It's worth nothing that they won't have the same physical fingerprint.
What did the twins do?
The twins were terrors. What didn't they do?. Stories will forever be formed and reformed on the doings of the twins.
Why are identical twins and fraternal twins not the exact same?
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
How do you get identical and non identical twins?
Identical twins are formed when one fertilized eggs splits. Non-identical twins are formed when two separate eggs are fertilized.
How fraternal and identical twins are formed?
Identical twins are formed when a fertilized egg splits in two and separates, creating two embryos. Fraternal twins form when two separate eggs are fertilized.
Why are twins formed in one embryo?
Identical twins are sometimes formed when one egg after being fertilized by one sperm, divides into two halves.
Why are identical twins identical and fraternal twins are not?
Identical twins are formed from a single egg that splits into two. Fraternal twins are formed from two separate eggs that are both separately fertilized. So identical twins have identical DNA, and fraternal twins do not.
What happens when twins are formed from one embryo?
There are smaller babies!
How are unidentical twins formed?
Two eggs are released and both get fertilised.
How do you call to siblings that have the same birthdays but dont look like each other?
They would be Fraternal Twins. The formed from separate eggs in utero. Identical twins formed from a single egg that split into two.
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.
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 is the difference between dizygotic twins and monozygotic twins?
Dizygotic twins develop from two separate ova fertilized by different sperm at roughly the same time, they are also called fraternal twins. Monozygotic twins develop from one zygote that splits apart producing genetically identical zygotes; also called identical twins.
