Twins conceived by the union of two different ova (or a single ovum that has split) with two different sperm cells within a brief period of time; also called fraternal twins.
Twins which were developed from two separate eggs, released from the ovary and fertilized at the same time. They may or may not be of the same sex, differ physically and genetically and have separate placentas, and separate amnionic and chorionic membranes. They are sometimes called binovular twins, dissimilar twins, false twins, fraternal twins or heterologous twins. Twins developed from the same egg, are knowns as monozygotic or identical twins.
Twins formed from two fertilised eggs, or zygotes; non-identical twins.
fraternal twins who stem from two eggs and two sperm
Twins that result from the fertilization of two oocytes.
Twins developed from separate eggs. They are no more alike genetically than ordinary brothers and sisters and can be of the same or different sexes (syn. fraternal twin). See also monozygotic twins.
fraternal twins born from two separate eggs. Monozygotic twins are born from the same egg.
Birth partners who have developed from separate fertilized eggs and who are only 50 percent alike genetically, no more so than siblings born from different pregnancies; sometimes called fraternal twins.
twins resulting from two fertilization events, of two seperate ova and sperm. (More? Week 1 Twinning)
Twins who develop from two separately fertilized ova; fraternal twins.
Twins who develop from the different ova that are fertilized at the same time.
DZ twins See Fraternal twins.
Nonidentical twins, arising from two different eggs fertilised by two different sperm; such twins are also referred to as fraternal twins.
arise when two eggs are released and fertilized; no more genetically similar than ordinary siblings
Twins arising by the fertilization of two eggs by two sperm.
Type of twins produced by fertilization of two ova by two sperm.