Nonrandom chromosome segregation in Neocurtilla (Gryllotalpa) hexadactyla: an ultrastructural study.
نویسندگان
چکیده
منابع مشابه
Nonrandom chromosome segregation in Neocurtilla (Gryllotalpa) hexadactyla: an ultrastructural study
During meiosis I in males of the mole cricket Neocurtilla (Gryllotalpa) hexadactyla, the univalent X1 chromosome and the heteromorphic X2Y chromosome pair segregate nonrandomly; the X1 and X2 chromosomes move to the same pole in anaphase. By means of ultrastructural analysis of serial sections of cells in several stages of meiosis I, metaphase of meiosis II, and mitosis, we found that the kinet...
متن کاملNonrandom Chromosome Abnormalities in Lymphoma1
G-banded chromosomes were studied from involved lymph nodes or other tumor masses in 94 patients with malignant lymphoma. Clonal chromosome abnormalities were identified in 91 patients including all 81 B-lymphomas but only 6 of 9 Tlymphomas. Many recurring chromosome abnormalities were found. Most common numerical alterations involved gains of chromosomes 12 (19% of patients), 18 (13%), 7 (12%)...
متن کاملNonrandom Chromosome Abnormalities in Angioimmunoblastic
Cytogenetic and pathologic studies were performed on six patients with angioimmunoblastic lymphadenopathy (AILD). All six had diffuse lymphadenopathy; five had fever, four had weight loss, and four had a diffuse erythematous rash. All patients except one had a polyclonal elevation of immunoglobulin. All patients had diagnostic findings in lymph node (IN) and bone marrow (BM) biopsies. Two patie...
متن کاملNonrandom Chromosome Arrangements in Germ Line Nuclei of Sciara coprophila Males: The Basis for Nonrandom Chromosome Segregation on the Meiosis I Spindle
Meiosis I in males of the Dipteran $ciara coprophila results in the nonrandom distribution of maternally and paternally derived chromosome sets to the two division products. Based on an earlier study (Kubai, D. E 1982. J. Cell Biol. 93:655-669), I suggested that the meiosis I spindle does not play a direct role in the nonrandom sorting of chromosomes but that, instead, haploid sets are already ...
متن کاملNonrandom Chromosome Arrangements in Germ Line Nuclei of Sciara coprophila Males: The Basis for Nonrandom Chromosome Segregation on the Meiosis I Spindle
Meiosis I in males of the Dipteran $ciara coprophila results in the nonrandom distribution of maternally and paternally derived chromosome sets to the two division products. Based on an earlier study (Kubai, D. E 1982. J. Cell Biol. 93:655-669), I suggested that the meiosis I spindle does not play a direct role in the nonrandom sorting of chromosomes but that, instead, haploid sets are already ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1981
ISSN: 0021-9525,1540-8140
DOI: 10.1083/jcb.88.2.281