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Maxine
RossNo, fraternal twins are more common than identical twins. Identical twins occur when a fertilized egg splits into two embryos, resulting in two individuals with the same genetic makeup. Fraternal twins occur when two eggs are fertilized by two different sperm, resulting in siblings who share approximately 50% of their genetic material, like regular siblings.
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Does 2 sacs and one placenta mean fraternal twins?
No, 2 sacs and one placenta usually indicates the twins are identical, or monozygotic twins. Fraternal twins, or dizygotic twins, typically have separate placentas as well as separate sacs.
How are you most likely to get identical twins than fraternal?
Identical twins are more likely to occur from a single fertilized egg splitting into two embryos, resulting in genetic duplicates. Fraternal twins result from two separate eggs being fertilized by two different sperm cells. Identical twins are not influenced by genetics or family history, whereas fraternal twins can be influenced by both maternal and paternal genetics.
What are the 2 kinds of twins?
Generally fraternal twins are more common. For fraternal twins to occur twins must diverge, but differentiate upon becoming separate entities. Identical twins are rarer, in which the two siblings are of the same gender and are exactly alike upon birth. Rarer so are conjoined, or "Siamese" twins. This occurs when twins are born partially or extremely fused together. There is only a 25% survival chance for a conjoined twin. Most were only connected by gristle and flesh, and could have been easily separated easily, were they in modern society.
How do twins look exactly alike?
Twins can look alike due to sharing the same genetic material and inheriting similar physical traits from their parents. Identical twins result from a single fertilized egg splitting into two embryos, leading to nearly identical DNA. Fraternal twins, on the other hand, are the result of two separate eggs being fertilized by two different sperm cells, which can result in less resemblance between siblings.
Do twins have the same blood type?
Identical twins should. Mutations are the only exception. Semi-identical twins (whether this is possible is still argued) are more likely to have such. Fraternal twins might, but no more likely than siblings having the same blood type (which is, reasonably, common). Fraternal twins with different fathers are less likely to share a blood type, just as would appear with half-siblings. Then again, it is POSSIBLE for you to have the same blood type as your unrelated next door neighbor, but it is not likely. I am just telling you the probability of things.
