The chemical breakage of chromosomes
نویسندگان
چکیده
منابع مشابه
Making chromosomes hot for breakage
Meiosis is a special cell division program that reduces the diploid chromosome set to a haploid set for sexual reproduction. Reductional segregation of homologous chromosomes is helped by physical linkages (crossovers) provided by recombina-tion. A long-standing problem in biology has been to understand how meiotic recom-bination is controlled, since its initiation by DNA double-strand breaks (...
متن کاملmesuring the staff technology readiness, the case of a multi national chemical company operating in iran
چکیده ندارد.
15 صفحه اولThe Chemical Composition of Isolated Chromosomes
By means of 1 M NaCl isolated lymphocyte chromosomes can be separated into two fractions, each of which contains nucleoprotein. The fraction soluble in M NaCl consists largely of desoxyribose nucleohistone, and constitutes 90 to 92 per cent of the mass of the chromosome. The insoluble residue (the residual chromosome is a coiled thread containing some 12 to 14 per cent of ribose nucleic and abo...
متن کاملMini-chromosomes derived from the human Y chromosome by telomere directed chromosome breakage.
We have used telomeric DNA to break two acrocentric derivatives of the human Y chromosome into mini-chromosomes that are small enough to be size- fractionated by pulsed-field gel electrophoresis. One of the mini-chromosomes is about 7 Mb in size and sequence-tagged site analysis of this molecule suggests that it corresponds to a simple truncation of the short arm of the Y chromosome. Five of th...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
ذخیره 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: Heredity
سال: 1947
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.1947.13