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| HYBRID ZONES OF HOUSE MICE OF GENUS MUS IN RUSSIA AND NEIGHBOURING COUNTRIES: ROLE OF HYBRIDISATION IN EVOLUTION OF COMMENSAL TAXA |
| The significance of hybridisation in the evolution and diversification of commensal taxa of Mus musculus s. l. species group is discussed. Allozyme analysis has shown that Trans-Caucasian populations of commensal house mice possess an admixture of musculus and domesticus genes. This region is either a zone of secondary contact between musculus and domesticus, with very wide introgression of domesticus genes into the genome of musculus, or these are relict populations descended from non-differentiated forms with ancestral polymorphism. The main feature of this zone is the unusually large extent of domesticus genes, which occur throughout the entire Trans-Caucasus (about 350 000 km2). Data and observations favour the view suggest that Trans-Caucasian house mouse populations are relicts of an early-differentiated form of M. musculus, preserving much of the ancestral gene pool. The second possible hypothesis is that populations of Trans-Caucasus are result of hybridisation of ancient not finally differentiated forms of house mice. It is possible that ancient “oriental” lineage and ancient form of musculus were colonised the Trans-Caucasus and mixed in this territory. The Adjarian populations would then be a product of contact between these forms and early of fully differentiated M. domesticus from Turkey. Large zones of hybridisation are present also in other regions of Asia. Analysis of hybrid populations of house mice in Russia demonstrates the particular significance of hybridisation in the evolution of commensal taxa. This enhanced role in commensals is linked to their unique ability to expand their geographic ranges through human agency and even survive as commensals in areas that are beyond their physiological tolerance. |
| Publishing date: May 31, 2006 |
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| THE METHOD OF THE PROGRAMMING OF THE SEX AT ARTIFICIAL INSEMINATION MAMMALS |
| The project "POMC" presents itself evidence and practiced technology with designed to her working equipment’s for programmed artificial insemination of the mammals all type, way programming of the sex of embryo’s... |
| Publishing date: February 26, 2003 |
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| CONSTRUCTION OF THE SCALE MODEL OF THE SPATIAL STRUCTURE OF THE PROTEIN ON ITS NUCLEOTIDE SEQUENCE |
| The strong correlation dependence of spatial structure of the protein from its nucleotide sequence was theoretically predicted by physical modelling, experimentally discovered and statistically confirmed.
In the process of biosynthesis the third nucleotide of the codon controls the orientation of the amino acid forming the concrete spatial isomer that is the conformation of the protein molecule cutting off competition ways of the forming of 2D and 3D structures. |
| Publishing date: April 2, 2002 |
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| DOPPLER BIO-EFFECT |
| From a cradle to a grave we are surrounded by the influence of the sun, moon, planets, stars, and constellations. The development of sciences inevitably results in understanding of unity of all being, and nowadays someone hardly try to deny, that even insignificant on the first sight of the phenomenon can render rather strong influence on a mutual course of events. One of the most ancient sciences - astrology is engaged in studying of influence of heavenly bodies on a life of a man. It may seem there cannot be rational scientific explanation here. However we know many examples of precise predictions that forces us to consider and attentively study this phenomena. By using achievements of modern sciences there were many attempts to explain mostly empirically discovered and practically proved astrological consistent patterns of influence of celestial bodies on Earth life. But till now it is not practically known, HOW this interaction occurs. |
| Publishing date: January 29, 2002 |
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| MIMICRY AS A MEANS OF CUNNING AND SURVIVAL |
| Weak animals and strong predators use the same strategy to survive. Having put a mask or imitated a vegetation, soil, water or even another animal, weak beings are able to brush by a predator without being noticed. Predators, in turn, use the same advantages to steal up unnoticed to a catch.
In the language of scientists, this capability to mask is called mimicry. The described survival strategy emerged appr. 550 mln years ago when first groups of weak and strong animals appeared. As a result, weak animals had to imitate the environment or even a predator; predators, in turn, had to camouflage as well to remain unheeded to be able to catch up a sly and clever being they hunt. |
| Publishing date: October 9, 2000 |
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| CREATIVE POWER OF NATURE IS INCOMPARABLE WITH A MAN'S |
| A man raising vegetables and fruit bearing trees pays them all his time to grow a good crop. He fertilizes and fluffs soil or ties up, waters and sprays plants. At the same time, weeds freely grow nearby; they grow on their own, without fertilizing, fluffing or other activities which man does in respect of cultivated and decorative plants. |
| Publishing date: September 25, 2000 |
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| WHY IN THE LONG RUN DID THE MAMMOTHS BECOME EXTINCT? |
| Up to now in frozen Siberian soil apart from an
enormous number of half rotten remnants absolutely intact carcasses of mammoths
are discovered. Scientists analyzed the contents of the alimentary tract of
prepared bodies. |
| Publishing date: August 16, 2000 |
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| WHY DOES EVERY LIVING THING SHINE? |
| It is known that the sea-worm saves itself like a
lizard sacrificing its tail. When a crab or a fish of prey attacks the sea-worm
the hinder part of the reptile flashes brightly and the attacker rushes at this
shining lure biting off the tail... |
| Publishing date: August 7, 2000 |
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| DINOSAURS DIED OUT OF CANCER AND STERILITY |
| Each
new discovery of new pangolins deepens our knowledge of the regularity in the
fauna evolution. |
| Publishing date: June 14, 2000 |
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