نتایج جستجو برای: b chromosome
تعداد نتایج: 1002957 فیلتر نتایج به سال:
Being sessile, plants are continuously exposed to DNA-damaging agents presenting in the environment such as ultraviolet (UV). Sunlight acts as an energy source for photosynthetic plants; hence, avoidance of UV radiations (namely, UV-A, 315 400 nm; UV-B, 280 315 nm; and UV-C, <280 nm) is unpreventable. DNA in particular strongly absorbs UV-B; therefore, it is the most important target for UV-B i...
A seventeen-years old woman was presented with infertility and primary amenorrhea. She had normal stature, femate phenotype and normal development of breasts, external genitalia, vagina and cervix. Pelvic examination showed a large lobulated mass. On sonography there was a mass with probable origin of ovary. Paraclinic tests were carried out. Gonadotropins were in postmeno pausal limits. Alpha ...
Aurora B kinase regulates the proper biorientation of sister chromatids during mitosis. Lack of Aurora B kinase function results in the inability to correct erroneous kinetochore-microtubule attachments and gives rise to aneuploidy. Interestingly, increased Aurora B activity also leads to problems with chromosome segregation, and overexpression of this kinase has been observed in various types ...
Deletions of the long arm of chromosome 11 (11q) are one of the most frequent structural chromosome aberrations in various types of lymphoproliferative disorders. However, in most conventional chromosome banding studies of B-cell chronic lymphocytic leukemia (B-CLL), 11q deletions were not identified as a frequent aberration. The objective of this study was to analyze the frequency and clinical...
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