| 单词 |
zygosity |
| 释义 |
zygosity Genetics.|zaɪˈgɒsɪtɪ|
[f. zygosis + -ity.]
a. The genetic relationship of twins, triplets, etc., in respect of their being either monozygotic or dizygotic.
1952New Biol. XII. 42 Instead of exchanging skin between the twin animals whose zygosity it is desired to establish, grafts are being transplanted from both of them to a third, unrelated recipient. 1971Nature 23 July 277/1 Before recent developments with marker genes, it was not possible to assign with certainty the zygosity of a substantial proportion of twin pairs. 1978Jrnl. R. Soc. Med. LXXI. 311/2 The type of twinning and determination of zygosity are given attention.
b. The degree of genetic similarity between alleles which determines whether an individual is homozygotic or heterozygotic for the characteristic expressed.
1967Jrnl. Clin. Investigation XLVI. 681 (heading) Relationship between Rh0(D) zygosity and red cell Rh0(D) antigen content in family members. Ibid., The members of two families showed a poor correspondence between antibody binding and zygosity. 1972Transplantation XIV. 793/1 Efforts have been made to determine HL-A zygosity of unrelated subjects by use of the gene-dose effect. |
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单词 zygosis 释义 ‖ zygosis Biol.|zagss, zg-|[mod.L., ad. Gr. , f. ῦ to yoke, f. yoke.]......