03.01.03 Молекулярная биология

Problems and prospects of the main biogenic elements intramolecular isotope correlations using as a new resource of different aetiology pathologies diagnostics It is shown that chemical elements isotopes fractioning in chemical and biochemical reactions is based on two fundamental kernel properties — the mass and the spin; differences between them can affect on both chemical reactions speed and reactive systems energy state. In some cases deviations in mass-dependent linear isotopic effect for most of uneven isotopes from hydrogen to uranium are observed. These fractioning peculiarities can be used: in living organisms — for early disease detection of different aetiology pathology; in abiogenous natural systems — for new methods of heavy elements isotopes enrichment development.

Formation of the liver in amphibian larval period on the example of the green toad (Bufo Viridis Laurenti, 1768) Describes the morpho-physiological characteristics of the emerging liver in larvae of the green toad (Bufo viridis Laurenti, 1768). Identified that studied the body performs the function of blood during larval development period. In the liver are formed elements of the blood of all lines. Describes he specifics of the organization and morphological changes of the body from developing larvae. There are some pathological changes in the liver and formed elements of blood.

Kasatik mistrue (Iris notha Bieb.) in Azov district of Rostov Province Results of the two Iris notha Bieb. cenopopulations studies in Azov district of Rostov Province in a valley of Vodinskaja gorge (river Tchumburka bassin), first registered in 2014 are presented. There are determined: population area, quantity, density, age structure of cenopopulations, seeds productivity, limiting factors.

Communication quantitative chromosomal abnormalities of spermatozoa and preimplantation embryos Modern genetic diagnosis allows to establish chromosomal nondisjunction not only in postnatal and prenatal periods, but also in germ cells and early embryos. Thus, the most common nondisjunction in sperm are 18 and sex chromosomes. The most common aneuploidy in preimplantation embryos are chromosomes 21 and 18. Win abnormal embryos was 65,2 %, which indicates that the most effective elimination of nonviable embryos in early preimplantation stage.

Characteristics of regenerative processes in the reproductive system of cows in disadvantaged on viral leukemia farms Reproduction of the herd at the epizootic troubles is a challenge for many farms. Special therapeutic approach to gynecological pathology is required for detection of viral bovine leukemia.