dizygotic twin वाक्य
उदाहरण वाक्य
मोबाइल
- In monozygotic twins the impact of genotypes ( i . e . factors ( 1 ) and ( 2 ) is much stronger than in dizygotic twins.
- Evidence from twin studies show that concordance rates for alcoholism are higher for monozygotic twins than dizygotic twins 76 % for monozygotic twins and 61 % for dizygotic twins.
- In one such example, Vanscoy et al . compare lung function between monozygotic and dizygotic twin pairs, as well as siblings with cystic fibrosis ( CF ).
- As of 2013, the cohort was predominately female ( 83 % ) and middle-aged or older, with about an equal division of monozygotic and dizygotic twins.
- Studies of dizygotic twins of the late 1990s support this idea, particularly with regards to primary gyri and sulci, whereas there is more variability among secondary and tertiary gyri.
- The relatively low concordance between dizygotic twins brought up together suggests that shared family environmental effects are limited, although the ability to detect them has been limited by small sample sizes.
- :Citation : " " It is suggested that among dizygotic twins born to married white women in the U . S ., about one pair in 400 is bipaternal.
- One limited study on monozygotic and dizygotic twins claims that genetic variation can have an effect on reactions to unfair offers, though the study failed to employ actual controls for environmental differences.
- If the monozygotic twins resemble each other much more closely than the dizygotic twins, then it is likely that genetics play a strong role in the development of the trait of interest.
- The episode ends when Robin goes into labor and via a caesarian section gives birth to dizygotic twins-a human looking girl with a forked tongue, and a reptilian boy with blue human-like eyes.
- Also, highlighting the importance of genes, these correlations found much higher correlation among monozygotic than dizygotic twins that had a correlation of 0.08 when reared together and " 0.02 when reared apart.
- Based on the comparison of a series of monozygotic and dizygotic twins, Freire-Maia ( 1961 ) concluded that the preference in the type of hand clasping was affected by certain genetic factors, and ( perhaps ) to a significant extent.
- Kendler, Neale, Kessler, Heath, and Eaves ( 1992 ) have argued from data comparing monozygotic with dizygotic twins that the genetic factor common to all phobias ( agoraphobia, social phobia, and specific phobias ), strongly predisposes a person to specific phobias.
- The phenomenon of immune tolerance was first described by Ray D . Owens in 1945, who noted that dizygotic twin cattle sharing a common placenta also shared a stable mixture of each other s red blood cells ( though not necessarily 50 / 50 ), and retained that mixture throughout life.
- :" We did not set out with the idea in mind of studying the immunological consequences of the phenomenon described by Owen; on the contrary, we had been goaded by Dr . H . P . Donald into trying to devise a foolproof method of distinguishing monozygotic from dizygotic twins & . "
- Owen s findings were published with little attention until Frank Macfarlane Burnet and Frank Fenner published their monograph The Production of Antibodies in 1949 . It was through Burnet and Fenner s work that Peter Medawar learned of Owen s findings and used it to help explain his findings that dizygotic twin calves accept each other s skin grafts after birth.
- Additional contributions by Weinberg to statistical genetics included the first estimate of the rate of twinning Realizing that identical twins would have to be same-sex, while dizygotic twins could be either same or opposite sex, Weinberg derived the formula for estimating the frequency of monozygotic and dizygotic twins from the ratio of same sex and opposite twins to the total of maternities.
- Additional contributions by Weinberg to statistical genetics included the first estimate of the rate of twinning Realizing that identical twins would have to be same-sex, while dizygotic twins could be either same or opposite sex, Weinberg derived the formula for estimating the frequency of monozygotic and dizygotic twins from the ratio of same sex and opposite twins to the total of maternities.
- One key piece of evidence is a twin study that showed that the likelihood of developing the disease is 53 % for one member of monozygotic twins ( twins with same genetic code ), compared to the 15 % for dizygotic twins, who don't share the exact DNA . Others question the evidence of heritability due to different definitions of schizophrenia and the similar environment for both twins.
- A 1994 article in " Behavior Genetics " based on a study of Swedish monozygotic and dizygotic twins found the heritability of the sample to be as high as 0.80 in general cognitive ability; however, it also varies by trait, with 0.60 for verbal tests, 0.50 for spatial and speed-of-processing tests, and 0.40 for memory tests.
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