The reason can't be reduced to «sweeter blood» (sorry, Granny), but there is a genetic component: In a recent study published in Plos One, identical twins (who have the same genes) attracted mosquitoes at the same rate,
while fraternal twins were bitten at very different rates.
But the fascinating finding was that the sets of identical twins — with identical genomes — reported the same exact levels of fidelity,
while fraternal twins and regular siblings didn't.
Identical twins — who share the same genes — reported similar experiences,
while fraternal twins, with some different sets of genes, often differed in their responses.
Well, identical twins all share one placenta,
while fraternal twins usually have their own.
Not exact matches
While most multiple pregnancies conceived with fertility treatments are
fraternal twins, the use of fertility treatment does increase your risk of having identical
twins.
While many people are familiar with the terms «identical» and «
fraternal» in describing multiples, and use these terms to define whether
twins or triplets look similar, what they are really referring to is how the multiples form.
This book by Jane Roper isn't really a how - to guide, but the story of her own experience raising
fraternal twin girls
while battling depression and a host of personal issues.It's an entertaining and very personal view as she experiences trying to get pregnant, processing the idea of
twins, sleepless nights, endless diaper changes, and all of those unforgettable experiences in the first three years of
twins» lives.
Based on the core principles of behavioral genetics, if genetics explain variations in distrust and trust behaviors, then identical
twins should behave more similarly to each other than
fraternal twins, since the genes of identical
twins are shared,
while the genes of
fraternal twins are only imperfectly correlated, Reimann said.