L.V. Abakumova - Ph.D. (Biol.), Rostov State Medical University of the Health Ministry of the Russian Federation (Rostov-on-Don). E-mail: alara2008@mail.ru V.V. Khrenkova - Ph.D. (Biol.), Southern Federal University (Rostov-on-Don). E-mail: vvkhrenkova@gmail.com A.A. Roginskaya - Student, Southern Federal University (Rostov-on-Don). E-mail: alara2008@mail.ru E.N. Yakusheva - Student, Southern Federal University (Rostov-on-Don). E-mail: alara2008@mail.ru