Dr. Ivan Pavlov (1890) - Nobel Prize in Physiology or Medicine for his work on the physiology of digestion.
Dr. Nikolai Vavilov (1911) - Renowned geneticist and botanist, known for his work on plant genetics and the theory of the centers of origin of cultivated plants.
Dr. Dmitry Belyayev (1937) - Noted for his research on domestication and the silver fox domestication experiment.
Dr. Alexander Oparin (1917) - Biochemist known for his contributions to the theory of the origin of life, and the Oparin-Haldane hypothesis.