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Mother-of-pearl

mother-of-pearl

(Science: zoology) The hard pearly internal layer of several kinds of shells, especially. Of pearl oysters, river mussels, and the abalone shells; nacre. See Pearl.


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Colorblindness Probability Help!

The incidence of an XXY karyotype is about 1 in every 1000 male births, the extra X chromosome coming either from the mother's egg or the father's sperm by nondisjunction during meiosis. Suppose the baby's father has red-green colorblindness. Would you predict that the baby boy with ...

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by kaylagh
Sun Sep 07, 2014 6:07 am
 
Forum: Genetics
Topic: Colorblindness Probability Help!
Replies: 0
Views: 84

Question about hair color and tallness inheritance

... my father has dark brown hair and he had a wife back then and they made two children but they divorced. Both of the children have ginger hair. My mother has very dark brown hair and my sister has the very dark brown hair, i have a normal brown hair. My question is, am i a carrier of the ginger ...

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by hitom
Thu Aug 07, 2014 9:58 pm
 
Forum: Genetics
Topic: Question about hair color and tallness inheritance
Replies: 0
Views: 441

Re: Prenatal dream?

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by cry4vision
Thu Feb 20, 2014 11:37 pm
 
Forum: Human Biology
Topic: Prenatal dream?
Replies: 17
Views: 13991

Re: Re:

... to recite trite catch phrases you gleaned elsewhere on the Internet? An infant can distinguish between people alright. It, for example, knows its mother from its father. It knows its fat aunt from its skinny aunt. What exactly is your point with respect to infants? In fact what is your point generally? ...

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by Seth90210
Sat Jan 25, 2014 10:22 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 264331

Re:

... to come up with ways to test the various hypotheses. One of the best known serious proposals to explain the evolution of menopause is the grandmother hypothesis . The central idea is that for older women, the individual fitness benefit from having new children is actually less that the fitness ...

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by badgertoes
Sat Dec 28, 2013 9:01 am
 
Forum: Evolution
Topic: Gender divison in two opposites is greatest mistake of manki
Replies: 25
Views: 18382
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