Twins: And What They Tell Us About Who We Are (65 page)

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Authors: Lawrence Wright

Tags: #Family & Relationships, #Siblings, #Science, #Life Sciences, #Genetics & Genomics, #test

BOOK: Twins: And What They Tell Us About Who We Are
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Fisk, Nicholas, 111-112
Fletcher, Ronald, 32
Follicle-stimulating hormone (FSH), 99, 100, 101-102
Fragile X syndrome, 108
Fraternal twins
differences between, 96-97
how they occur, 11-12, 96, 98-99
vs
. identical twins, 96, 97-99
vs
. ordinary siblings, 75
prevalence of, 99-101
Free will, 144, 154, 155-156
Fries, Charles, 23
G
Galland, Eddie, 37, 39

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