chromosomal abnormality
3.The author thinks that chromosomal abnormality is of importance to caus- ing spontaneous abortion and puts foward a series of proposals on eugenic.
4.ObjectiveA deletion of the long arm of chromosome 20 (del(20q) or 20q-) is the most frequent cytogenetic finding in malignant hematologic diseases with abnormalities of chromosome 20. In malignant hematologic diseases with a solitary chromosomal abnormality, 20q-represents the second most common structural abnormality after the Philadelphia chromosome.
5.All the fetuses were followed up. Results The incidence of EIF was 0.73% in the normal group, and 1.61% in the fetuses with malformation or chromosomal abnormality. But there was no significant difference between the two groups (P>0.05).
6.The clinical manifestation, hematologic abnormalites,AML?1?ETO chemeric gene and therapeutic response in twenty?three acute myelocytic leukemia patients with t(8;21) chromosomal abnormality were observed. The results showed that AML?1?ETO gene can be regarded as a molecular marker of acute myelocytic leukemia subtype M??2b?.
7.Molecular Cytogenetic Detection of Minute Chromosomal Structural Abnormality on the Chromosomal Terminal Regions

