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By V. Golemansky, N. Chipev

Dedicated to Gentoo penguins, this quantity discusses the elements of genetics, polymorphism, survival, morphology and body structure.

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1992). , 1990). The aim of the present work is to: - study the morphology and physiology of yeast of the Pygoscelid penguin’s molting feathers from different places in Western Antarctica with and without a tourist impact; - identify and investigate the potential of yeasts for the biosynthesis of enzymes and polysaccharides. MATERIALS AND METHODS Molting feathers of adult animals were collected during the summer seasons of 2002, 2003 and 2004 in Western Antarctica: Livingston Island (Caleta Argentina), Cuverville Island, Neko Harbor and Port Lockroy (Yugla point).

BEZRUKOV The role of melanin and UV radiation. Despite studying the sequence variation of MC1R gene (see above) there are no perspective ideas published in the literature, which can explain the variation of the melanin based coloration in birds jet. On the other hand, the complicated biochemical pathway of melanin synthesis gives opportunities to monitor particular steps of this pathway by relatively easy to perform assays. UV radiation exposure stimulates the eumelanin (black-brownish collored) synthesis.

Proceedings of the National Academy of Sciences USA, 86: 7049-7053. ,BURKE T. 2004. Measuring vertebrate telomeres: applications and limitations. - Mol Ecol, 13(9): 2523-2533. ,VLECK D. 2003. The natural history of telomeres: tools for aging animals and exploring the aging process. - Experimental Gerontology, 38: 791– 795. WATSON J. 1972. Origin of concatameric T4 DNA. - Nature, 239: 197–201. D. 1995. The Penguins. Oxford University Press, Oxford. 295 p. Antarctic Research 37 Sofia – Moscow Life Sciences, vol.

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