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Monozygotic Twins

Identical twins that derive from the same [[ egg and genetic information from the [[gametes.monozygotic twins

Identical twins, twins which are the result of a single zygote (fertilized egg) splitting into two cell masses and becoming two individuals. The twins are genetically identical and are always of the same sex (both males or both females).

Compare: dizygotic twins.


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Natural selection is proven wrong

... that no two individuals will ever be genetically identical (except monozygotic twins). So, bad alleles, over time, tend to be slowly (sometimes quickly if they are fatal ...

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by wbla3335
Sun Apr 26, 2009 8:17 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 247
Views: 653597

Re: Randomness in chromosomal crossover

... eggs, and that's not too likely to happen (we're not considering monozygotic twins here). If you're interested in things like free will, determinism, etc., have a look ...

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by wbla3335
Sun Feb 22, 2009 10:12 am
 
Forum: Genetics
Topic: Randomness in chromosomal crossover
Replies: 1
Views: 2411

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... psychologist who reported a heritability for IQ of 77% for identical twins reared apart. Subsequently, he was widely accused of fabricating his ... together gave a concordance rate for criminal behavior of 52% for 202 monozygotic twins and only 21% for 345 dizygotic twins. American, Danish, ...

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by TJJ
Fri May 16, 2008 12:13 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 269878

Reproduction...

But these cases are quite less but not rare. dizygotic twins are unlike usually, and growth rate differes. Monozygotic are alike mostly and growth rate of one depends upon "nothing" but same. Agreed ...

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by Heronumber0
Sat Jul 07, 2007 6:43 pm
 
Forum: Cell Biology
Topic: Reproduction...
Replies: 9
Views: 4658

Reproduction...

But these cases are quite less but not rare. dizygotic twins are unlike usually, and growth rate differes. Monozygotic are alike mostly and growth rate of one depends upon "nothing" but same.

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by sachin
Wed Jul 04, 2007 2:01 pm
 
Forum: Cell Biology
Topic: Reproduction...
Replies: 9
Views: 4658
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