Two individuals derived from a single fertilized egg and therefore genetically identical.
twins which have been produced by the division of a single zygote. Each twin has an identical genotype. As such, these individuals are often referred to as "identical twins". While each twin begins with the same set of genetic information, the effect of the environment within which each individual grows up can cause differences in how their genetic make-up is expressed.
twins (identical) produced by division from a single zygote. Twins therefore share the same genetic makeup. Note dizygotic twins arise from separate fertilizations of different eggs. (More? Week 1 Twinning)
A pregnancy in which two children are produced from the same ovum, which has split during early embryonic development. Monozygotic twins are always of the same sex, share the same genetic makeup and blood groups. Both children resemble each other physically, mentally and psychologically. Monozygotic twins are also called enzygotic twins, true twins, identical twins or uniovular twins.
identical twins; twins derived from a single zygote.
identical twins who stem from one egg and one sperm
Genetically identical siblings who have developed from a single fertilized egg; sometimes called identical twins.
Twins resulting from the division of a single zygote after fertilization; also called identical twins. (41)
Twins produced by the splitting of a single fertilized egg (zygote).
Twins who develop from the same ovum.
identical twins; from the same egg that has split in two.
Twins that derive from only one fertilized egg. After a number of cell divisions new cells are split to form the two fetuses. They are genetically identical.
identical twins formed from one egg.
result from a separation of a fertilized egg; genetically identical
identical twins which are thought to arise by cleavage of a single embryo into two halves.
Identical twins (born from the same egg).
Genetically identical twins that originate when a developing embryo divides to form two separate but identical embryos.
Identical twins; twins who develop from a single fertilized ovum.
Twins derived from one egg and one sperm (often called identical twins).
Results from fertilization of one ovum (egg). Known as "identical twins".
Twins developed from a single egg. They are always of the same sex and commonly much alike in appearance, although some characteristics may be in mirror image; for example one right-handed, the other left-handed (syn. identical twins). See also dizygotic twins.