Localization of deoxyribonucleic acid complementary to ribosomal ribonucleic acid and preribosomal ribonucleic acid in the nucleolus of rat liver.

Effects of Thioacetamide on the Composition and Biosynthesis of Nucleolar and Nuclear Ribonucleic Acid in Rat Liver.

A number of studies have shown that the metabolic and proliferative properties of cells may be correlated with the size of their nucleoli (14). Generally, cells engaged in rapid protein synthesis or replication possess enlarged nucleoli. On the basis of morphological changes and autoradiographic studies, it has been suggested that the nucleolus is a site of rapid synthesis of ribonucleic acid a...

Indirect evidence for the presence of Ribonucleic acid in vesicular stomatitis Virions

Enzymatic Synthesis of Ribonucleic Acid. Iv. the Deoxyribonucleic Acid-directed Synthesis of Complementary Cytoplasmic Ribonucleic Acid Components.

The ribonucleic acid product formed by ribonucleic acid polymerase resembles its deoxyribonucleic acid template in base composition and in base sequence (l-6). The reaction in vitro results in the synthesis of RNA chains which are complementary to both DNA strands (6). Evidence for this originates from the formation of highly ordered RNA structures when the RNA polymerase product is annealed wi...

Isolation and characterization of ribonucleic acid from cerebral cortex of rat.

Ribonucleic acid isolated from cerebral cortex of mature male and female rats was fractionated by chromatography on methylated albumin Kieselguhr columns or by sucrose gradient centrifugation. Three principal fractions were obtained with analytical ultracentrifuge s~o,~ values of 4, 17, and 28. By comparison with ribonucleic acid prepared from purified rat brain ribosomes, the 17 S and 28 S fra...

تمایز استرین‌های چندگانه ترایکوفایتون روبروم در بیماران مبتلا به اونیکومایکوزیس با استفاده از روش مولکولی واکنش زنجیره‌ای پلیمراز(P.C.R)

Dermatophytes are a group of keratinophilic fungi falling within the genera of epidermophyton, microsporum and trichophyton. The genus trichophyton is particularly important and complex which comprises at least 24 recognised species. Additionally, molecular strain typing of trichophyton rubrum isolated within single nail specimens from patients with onychomycosis indicates involveme...