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IN OMG! ON 15 Mar, 2016
It’s a sign of good fortune to have twin babies. If you’re willing to give birth to twins, then you must check out these 10 proven ways to get pregnant with twins quickly and naturally. Twins usually look alike in their physical appearance but there are twins who spend exorbitant amount of money to look similar in every possible way.
This is the story of Vietnamese fraternal twins from northern Hoa Binh province who were found to have different fathers. The parents were shocked to see that their twin boys didn’t resemble each other. When the babies began to grow, the parents decided to undergo DNA test to find out the reason of their dissimilar looks.
The test was carried out at the Hanoi Centre for Genetic Analysis and Technology.
One of them has thick wavy hair while the other one has thin straight hair.
This condition of conception within a limited time by sperms of different men is known as bi-paternal conception or heteropaternal superfecundation.
Professor Le Dinh Luong, president of the Hanoi-based Vietnam Genetic Association explained, "The results of DNA testing results were '100% correct' in this 'extremely rare case'. There are only less than 10 known cases of twins with different fathers in the world. There might be other cases but the parents and/or the twins were not aware of it or didn't want to announce it."
One of the twins looked completely different from his sibling and parents.
It occurs when a woman releases several eggs in the ovulation period which get fertilized by different men in a quick span of time. It may also occur when a woman ovulates twice within a short time interval and both eggs get fertilized by different men quickly.
The last case was reported in 2015 which involved twin girls in New Jersey. It's the third such case occurred in the US.
According to a recent study, heteropaternal superfecundation occurs one in 400 twins births in the US. The chances of conceiving twins increase with the age.
Heteropaternal superfecundation is also reported in many animals such as dogs, cats, cows, mink and rodents.
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