can fraternal twins have different heights?
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Same-sex fraternal twins can also be different heights. ... Fraternal twins are essentially brother and sister of the same age, so the boy will usually be taller.
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They Can Be Different Genders or the Same Because fraternal twins originate from separate conceptions, they can be boys, girls, or one of each (just like a singleton baby). ... 2﻿ As a result, the chances of fraternal twins resulting in boys, girls, or a combination are the same as for any other baby.
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The more tall ancestors you have determines the likelihood of you being tall, however, if there is even one ancestor that carries the genetics of shortness you have a possibility of ending up short! Even if all your brothers and sisters are 6'5″.
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Indeed, it is extremely rare to find genetically identical twins, who differ in body weight (demonstarting just how highly heritable body weight actually is). Thus, body weight in identical twins is remarkably homogeneous not only because of the heritability of weight per se but also due to heritability of weight gain.
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"Fraternal twins, though, are two genetically unique beings, as if you had two regular siblings just at the same time, and they, again, oftentimes have a close connection," Maureen Healy, an expert on sensitive children and author of “Growing Happy Kids” said.
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Fraternal twins may be the same gender, they may have many of the same characteristics, but also may be very different from each other and, in fact, share half of their genes just like their sisters and brothers.
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Identical twins don't generally run in families, but fraternal twins do. It looks like twins “skip a generation” in some families. ... If you are a male DZ twin and there are other DZ twins in your family, you do not have an increased chance of having DZ twin children.
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Fraternal twins are really just siblings who share the same womb. Each starts out as a separate egg fertilized by a separate sperm. They don't share any more DNA than do any two siblings. Siblings normally have 50% of their DNA the same.
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It all started when two sperm fertilized an egg at the exact same time. Twins can be fraternal, identical — and in extremely rare cases — semi-identical. ... Because identical twins share all of their genes, they can't be of opposite sexes like fraternal twins can.
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Some identical twins can have different heights and weights. This is because height and weight are controlled by what you eat as well your DNA. ... This can mean one twin starts getting more to eat even before they are born! Another physical difference between identical twins is their fingerprints.
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However, for a given pregnancy, only the mother's genetics matter. Fraternal twins happen when two eggs are simultaneously fertilized instead of just one. A father's genes can't make a woman release two eggs.
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While fraternal twins (2 eggs and 2 sperm) are always surrounded in their own sacs and have their own individual placentas, 70% of identical twins may end up sharing a single placenta. ... As a result, although identical twins usually share the same genetic material, they may actually grow differently.
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Every twin has their own spirit, but there are difference between those of fraternal and identical twins. The spirits of fraternal twins have no closer relationship than those of any siblings. ... Identical twins have twin spirits; they experience many of their lifetimes together, always as identical twins.
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Fraternal twins Because they come from different eggs and sperm, they only share about 50 percent of their chromosomes like any other siblings. This means they can be the same or different sexes and aren't identical.
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Genes are not involved. The same is not true for fraternal twins. Fraternal twins happen when two independent eggs are each fertilized by different sperm. This is why the DNA of fraternal twins is different.
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Same-sex twins with separate placentas can be fraternal or identical. For health reasons, it's good to know whether your twins are fraternal or identical. To find out whether twins are identical or fraternal, you can ask for a genetic test after your babies are born.
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Siblings do not always grow to even in height. ... Siblings share 50% of their genes. But which are the same and which are different, which are from their mom and which are from their dad, is pretty much random. So, there are as many younger brothers that are taller than older brothers as vice versa.