Short answers, pulled from the story.
Theodosius Dobzhansky is famous for his 1937 book Genetics and the Origin of Species, which was central to shaping the modern evolutionary synthesis, and for his essay "Nothing in Biology Makes Sense Except in the Light of Evolution," published in 1973. He defined evolution as "a change in the frequency of an allele within a gene pool."
Theodosius Dobzhansky was born on the 25th of January 1900 in Nemirov, Russian Empire, now Nemyriv, Ukraine. He was the only child of Grigory Dobzhansky, a mathematics teacher, and Sophia Voinarsky.
Dobzhansky was a practicing Christian who supported theistic evolution, describing his view as "Evolution is God's, or Nature's, method of Creation." He believed that God and science could be reconciled through the idea that the Creator worked through evolutionary processes.
Dobzhansky received the U.S. National Medal of Science in 1964, the Franklin Medal in 1973, and the Daniel Giraud Elliot Medal from the National Academy of Sciences in 1941. He was also elected a Foreign Member of the Royal Society in 1965 and received honorary degrees from institutions in Australia, Belgium, Brazil, Canada, Denmark, England, Germany, Italy, Japan, and Sweden.
Dobzhansky argued that science should not abandon the term "race" simply because it had been misused, and that grounding the concept in population genetics could undermine racist social prejudices. He was a signatory of the 1950 UNESCO statement "The Race Question" and maintained that no true bloodline for humanity could be identified.
In the 1940s, Dobzhansky personally translated the work of Trofim Lysenko into English to expose its scientific flaws to English-speaking readers. He was an outspoken opponent of Lysenkoism and knew personally many Soviet biologists who had been victimized by Lysenko's campaign against genetics and Darwinism.