from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Not
from Wiktionary, Creative Commons Attribution/Share-Alike License
Errors in zygosity determination systematically inflate heritability estimates for nonmendelian characters, because very similar DZ twins are wrongly counted as MZ, while very different MZ twins are wrongly scored as DZ.
In studying nonmendelian characters (Chapter 19), and sometimes in genetic counseling, it is important to know whether a pair of twins are monozygotic (MZ, identical) or dizygotic (DZ, fraternal).