dizygous, a. Biol.
(daɪˈzaɪgəs)
[f. di-2 + Gr. ζυγ-όν + -ous.]
= dizygotic a.
| 1940 Jrnl. Heredity XXXI. 277/1 The comparison of similarities in identical twins with similarities in fraternal or dizygous twins..affords a clue to the rôle played by heredity in producing certain traits. 1950 Race & Sanger Blood Groups in Man xx. 246 Distinction between monozygous and dizygous twins: blood groups are being used more and more for this purpose. 1973 B. J. Williams Evolution & Human Origins xiv. 245/2 Dizygous twins are genetically no more alike than siblings. 1983 Oxf. Textbk. Med. I. iv. 7 There is a multiplicity of twin types. The monozygous and dizygous forms are well known. |