Naturally never! Artificially maybe and possible.
Naturally
* Dizygotical (DZ) Twins (Fraternal or Non-Identical Twins): Born under the fertilization of two different eggs that when they grow in the uterus they don't share placenta.
These can be:
Male-Female DZ Twins (the most common grouping of twins)
Female-Female DZ Twins (sometimes called sororal twins)
Male-Male DZ Twins
* Monozygotical Twins (Identical Twins) Born under the fertilization of one egg and forms on zygote and sperate to form two different embryos. They share the same placenta but not always share the same sac.
They can only be of the same sex:
Female-Femal MZ Twins
Male-Male MZ Twins (less commen grouping of twins)
Artifically
It is possiblie that a woman during ovulation gives two eggs insted of one. One of the eggs maybe extracted and planted into an other woman. The both eggs will be artifically fertilized by the same semen. Making this can be possible but only be the identical eggs of one woman and the same seman of a man. In the end the second woman will give birth to one of the twins but that twin won't have her gens.
No it is not possible
Yes. It is possible to have a set of fraternal twins in which there is one boy and one girl.
You don't have to be a twin to give birth to a twin, neither does your partner, the fact that one is or isn't a twin is irrelevant. So yes, someone that's not a twin can have twins with a partner that's mother is a twin.
Yes, they be born 10 seconds, 10 minutes etc older than you.
uncle
The first boy was born on the last day of the year. The second was born on the first. right but the first was born at 11:59p.m the other sometime after midnite
It is possible but very reare and only occurs in i in every 500,000 live births.
This is a psychological question rather than a pregnancy one. My husband is an identical twin, and we have fraternal twin son/daughter. when asked what it is like being a twin they can't say, any more than I can say what it is like to be a singleton. Elvis Presley was a twin, his twin died at birth.
No, but it is possible
I would have to say the man in question was in love with the looks of the girls, rather than their personality. He simply lusts after them rather than loves them, as twins often have very different personalities.
twin to twin transfusion - one twin takes more blood than the other causing one to weigh more.
Yes. In fact, twins are more likely to have twins than "non-twins" are.