A correlated autoradiographic and biochemical study of RNA synthesis in the nucleoli of chinese hamster ovary cells has been made. Quantitative analysis of the labeling indicates that the fibrillar ribonucleoprotein (RNP) component is labeled faster than 80S RNP and 45S RNA molecules, but approaches simultaneously a steady-state 3H to 14C ratio or grains/mum2 after 30 min of [3H]uridine incorp...

Fertilizers have a significant role in the everyday life of modern cultivation. The metabolic changes and potentialities of ammonia in high concentration are reported in all groups of animals as ammonia toxicity and stress. The ammonia based chemicals might affect the reproductive organs of fetus when the mammals get exposed during pregnancy. The present aim of the research is to study some of ...

The in vitro uptake and incorporation of [H]ui idine by blastocysts of the tammar wallaby showed a 16and 30-fold increase from day 0 to day 10 after removal of pouch young, respectively. Two of the six non-expanded blastocysts recovered on day 5 showed a tenfold increase in incorporation. During the first ten days after removal of pouch young the diameter of the blastocyst increased threefold. ...

Blood specimens from primary care centres are normally transported to central laboratories by mail. This necessitates centrifugation and separation, especially since the potassium ion concentration in whole blood changes during storage at ambient temperature. Thus, because of the growing awareness of and concern for pre-analytical contributions to the uncertainty of measurements, we investigate...

NOVEL BIOCHEMICAL AND PHENOTYPICAL FINDINGS ON THE NODALSIGNALING COMPONENTS LEFTY AND CRIPTObyAMAPOLA BALANCIODecember 2014Advisor: Dr. William Branford, Jr.Major: Biological Sciences (Molecular and Developmental Biology)Degree: Master of ScienceNodal, a Transforming Growth Factor-β (TGF-B), is a key regulator of properdevelopment along with its atypical...

Demosponges possess a skeleton made of a composite material with various organic constituents and/or siliceous spicules. Chitin is an integral part of the skeleton of different sponges of the order Verongida. Moreover, sponges of the order Verongida, such as Aplysina cavernicola or Ianthella basta, are well-known for the biosynthesis of brominated tyrosine derivates, characteristic bioactive na...

Solvent additives (cosolvents, osmolytes) modulate biochemical reactions if, during the course of the reaction, there is a change in preferential interactions of solvent components with the reacting system. Preferential interactions can be expressed in terms of preferential binding of the cosolvent or its preferential exclusion (preferential hydration). The driving force is the perturbation by ...

Demembranated flagella from Euglena gracilis consisted of three distinct components: a 9 + 2 axoneme of microtubules, an extensive surface coating of long and short mastigonemes and a lattice-like axial fibre known as the paraflagellar rod. Negatively stained preparations of isolated paraflagellar rods showed the major structural unit to be a 22 nm filament oriented at approximately 45 degrees ...

This paper aimed to study the value of horse manure through anaerobic digestion. The involved characterization different components waste and evaluation their biochemical composition, physicochemical influence composition on methane potential. More specifically, two bedding mixtures were studied: first one was composed wheat straw (WS), wood chips (WC) (HM) with a volumetric 85%, 14% 1%, respec...