twin

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Related to monozygotic: Monozygotic twins

twin

1. 
a. either of two persons or animals conceived at the same time
b. (as modifier): a twin brother
2. a crystal consisting of two parts each of which has a definite orientation to the other

twin

[′twin]
(biology)
One of two individuals born at the same time.
(crystallography)
References in periodicals archive ?
Our conclusion is that discordant congenital CAVB may develop in monozygotic twins born to an autoimmune negative mother.
Congenital scoliosis in monozygotic twins case report and review of possible factors contributing to its development.
Some years ago, one (Twin A) of a pair of apparently monozygotic twin girls (Twins A and B) approached the genetic counselling clinic for a consultation regarding predictive testing for HD.
KEY WORDS: Kawasaki disease, Monozygotic twins, Genetic susceptibility, Infection.
Commonly known as identical twins, monozygotic twins develop from a single embryo.
Phenotypic and genotypic discordance in monozygotic twins.
In a study of 117 monozygotic twins aged 35-69, familial aggregation accounted for 43% of exercise variation in adulthood [29].
This technique involves the amplification of highly polymorphic regions specific for each chromosome, such as short tandem repeat sequences (STRs), to identify different allelic forms in individuals and confirm whether they are monozygotic or dizygotic.
Foetus-in-foetu is a rare malformation in which a monozygotic diamniotic parasitic twin is incorporated into the body of its fellow twin and grows inside it.
A subset of 192 twin pairs was included in the Final analysis: 54 monozygotic and 138 dizygotic pairs.
In Mexico, it has an incidence of 1 per 60,000 newborns; it occurs more frequently in monozygotic pregnancies than in singleton pregnancies.
Smoking, Dietary Betaine, Methionine, and Vitamin D in Monozygotic Twins with Discordant Macular Degeneration: Epigenetic Implications," which appeared in the July 2011 issue of Ophthalmology, is the first study to examine identical twin pairs in which one twin had early age-related macular degeneration (AMD), and the other had late-stage AMD.