Insomnia and Anxiety May Be Genetically Linked
The researchers' analysis of data from 749 monozygotic twin pairs and 687 dizygotic
twin pairs, aged 8 to 17, and their parents revealed that 19.5 percent of t...had insomnia, their twin was more likely to have insomnia than if they were dizygotic
twins," the researchers wrote.
The findings were to be presented Monday ...
The first autism disease genes
...h autistic subjects (45-times greater than the prevalence in the general population) and higher concordance for autism among monozygotic (60-90%) than dizygotic
(0-10%) twins argue for a genetic predisposition to idiopathic autism. These data are interpreted as showing that liability to autism is in large part...
Study links asthma and post-traumatic stress disorder
...ne, published by the American Thoracic Society.
The study included both monozygotic (identical) twins, who share all the same genetic material, and dizygotic
(fraternal) twins, who share only half of the same genetic material. If there had been a strong genetic component to the link between asthma and PTSD,...
Genes Play Major Role in Determining Individual's Sour Taste Perception
... published online in advance of print in the journal Chemical Senses, researchers tested 74 pairs of monozygotic (MZ, identical) twins and 35 pairs of dizygotic
(DZ, fraternal) twins to determine the lowest concentration needed for each twin to correctly identify a citric acid solution as 'sour.'
Multiple Sclerosis in Genetically Susceptible Twins is Augmented by Northern Environment
...d and Vermont.
Twins were divided into two categories, either monozygotic (identical twins with the same genetic makeup, coming from one egg) or dizygotic
(fraternal twins, coming from two separate eggs). An effect that is seen more commonly in the monozygotic twins suggests a heavier role is being playe...
Bone Fractures In Elderly Can Be Genetical
... to fractures, monozygotic twins (who have all the same genes, commonly called identical twins) are more likely to have similar rates of fracture than dizygotic
twins (who share about half the same genes, commonly called fraternal twins).
Researchers from the Uppsala University Hospital, Uppsala, Sweden,...
Dizygotic in Medical Dictionary
...pring resulting from the same pregnancy, usually born in close succession. They can be the same or different sex. Twins can either be monozygotic or dizygotic
. Get the facts about identical twins , the common term used to describe monozygotic twins , even thought identical twins aren't technical...
Dizygotic in Biological News
Rethinking the genetic theory of inheritance
...aring monozygotic (genetically identical) twins to dizygotic
(genetically different) twins. A trait or disease ...ozygotic twins are more similar to each other than dizygotic
twins. In molecular terms, heritability has tradit...epigenetic analysis of 100 sets of monozygotic and dizygotic
twins in the first study of its kind. Said Dr. Pet...
Genetic contributions to human brain morphology and intelligence
...ent magnetic resonance imaging (MRI) brain study with 45 monozygotic and 61 dizygotic
9-year-old twin-pairs, and their 87 full siblings also high heritabilities ... structures with intelligence. In our study involving 54 monozygotic and 58 dizygotic
twin pairs and their 34 singleton siblings, verbal, and performal intellige...
Twin studies reveal genetic components leading to cardiac and kidney disease
...tor in genotypes and determine the effect of specific genes on traits," O’Connor said. By studying both monzygotic (MZ, or genetically identical) and dizygotic
(DZ, or fraternal, who share half of their genetic information) twin pairs, researchers can more readily pinpoint specific genes in people who are the...
Study finds that a woman's chances of having twins can be modified by diet
...dentical twin sets are more often female than male, especially in conjoined twin sets, and that monozygotic twin sets are more likely to miscarry than dizygotic
sets. Dr. Steinman also found evidence through fingerprint analysis that as the number of fetuses in a monozygotic set increases, so does the level of...
Nutrition a major factor in rise in twin pregnancies
...ustralian national birth statistics from 1920 to 2003 to determine the sex of babies at birth among multiple pregnancies. They found that the rate of dizygotic
(DZ) twinning ?where two embryos are involved and half the twins will be of different sex - was relatively constant from 1920 until the 1960s, but the...
Dizygotic in Biological Definition
...otes, and these twins are therefore also known as dizygotic
twins are no more similar genetically than any sib...e womb causes the zygote to split in most cases.
twin pregnancies are slightly more likely when the...
...ll division at this time (for more information refer to biological life cycles ).
Twins and multiple births can be monozygotic (identical) or dizygotic
Zygote intrafallopian transfer
Biological life cycle