Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Derived from two separately fertilized eggs. Used especially of fraternal twins.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective biology Derived from two
eggs that have been separatelyfertilized ;dizygous
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective derived from two separately fertilized eggs
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The mother assumed that she had given birth to fraternal twins (dizygotic, from two eggs) and not "identical" ones (monozygotic, two embryos developed from a single fertilized egg).
Separated At Birth. Really. David Cesarini 2011
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In contrast, we present here evidence for cognitive “specialist genes”: monozygotic twins are more similar than dizygotic twins in the specific cognitive ability of face perception.
VDARE.com: Blog Articles » Print » Is Facial Recognition A Non-g Factor Mental Module? 2010
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In contrast, we present here evidence for cognitive “specialist genes”: monozygotic twins are more similar than dizygotic twins in the specific cognitive ability of face perception.
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Each of three measures of face-specific processing was heritable, i.e., more correlated in monozygotic than dizygotic twins: face-specific recognition ability, the face-inversion effect [2], and the composite-face effect [3].
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In this article, we report the results of two independently conceived and executed studies of monozygotic and dizygotic twins, one in Sweden and one in the United States.
Archive 2008-03-01 2008
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One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex adult dizygotic (DZ) twins from the United Kingdom (UK) completed the Humor Styles Questionnaire: a 32-item measure which assesses two positive and two negative styles of humor.
Archive 2008-08-01 2008
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Each of three measures of face-specific processing was heritable, i.e., more correlated in monozygotic than dizygotic twins: face-specific recognition ability, the face-inversion effect [2], and the composite-face effect [3].
VDARE.com: Blog Articles » Print » Is Facial Recognition A Non-g Factor Mental Module? 2010
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One thousand and seventy three pairs of adult monozygotic (MZ) twins and 895 pairs of same sex adult dizygotic (DZ) twins from the United Kingdom (UK) completed the Humor Styles Questionnaire: a 32-item measure which assesses two positive and two negative styles of humor.
Humor and Dreaming 2008
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A study published in the current issue of Journal of Personality studied adult male monozygotic (MZ) and dizygotic (DZ) twins to find that difference in religiousness are influenced by both genes and environment.
Genetics and the Future of Religion, Bryan Caplan | EconLog | Library of Economics and Liberty 2009
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In most twin studies, the twins themselves (or their parents) report "twin type" - i.e., whether the twins are identical (monozygotic/MZ) or fraternal (dizygotic/DZ).
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