Questions tagged [twins]

Children born from the same pregnancy. Twins can result from either a single zygote (monozygotic, or identical twins) or from two, separately-fertilized egg cells (dizygotic, or fraternal twins).

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The village of Twins — Mystery behind and Scope

With the presence of more than 200 twins, Kodinhi , a village situated in Malappuram District in Kerala , India , is popularly known as the "Village of Twins".This phenomenon of large ...
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Do the eggs of fraternal twins come from the same ovary?

With fraternal twins two matured eggs are released and fusion of the two with sperms result in formation of these fraternal twins. Then do the two matured eggs come from one ovary or both the ovaries ...
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How to determine if twins are identical or fraternal if only one is alive?

I had a twin brother who died at birth. I've missed him all my life, and have been curious to know if we were identical or fraternal. Is there a test to determine whether we were identical or ...
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Which disorders are fully concordant?

I work in neuroscience, mostly Alzheimer's disease (AD), with some work in autism spectrum disorder (ASD). The work is in gene regulation and epigenomics. I'm familiar with monozygotic twin (MZ) ...
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What happens to quality of breast milk when twins of two different sexes are born?

It says here in Scientific American Mother's milk may be the first food, but it is not created equal. In humans and other mammals, researchers have found that milk composition changes depending on ...
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Using the law of independent assortment, why can't heterozygous parents make identical twins?

In a case where two parents are heterozygous, why can't any pairs of their children be identical twins? As the question asks, I tried to explain this using the law of independent assortment, which ...
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Phenotype choice for one of a MZ twin pair in a genetic association study

I was having a discussion with a colleague and this question came up... It is commonplace in molecular genetics studies to only genotype one of a pair of monozygotic twins (and then implicitly impute ...
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