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Iowa State University A new study led by an Iowa State University scientist sheds light on how organisms have evolved to address imbalances in sex chromosomes. The study looks at a species of softshell turtle, but the results could help to illuminate an important evolutionary process in many species, said Nicole Valenzuela, professor of ecology, evolution and organismal biology and lead author of the study. Many organisms determine their sex by a pair of specialized chromosomes that appear in virtually every cell of an organism’s body. A matched pair of chromosomes results in one sex, while a mismatched pair results in another sex. For instance, in humans and many other species, sex chromosomes are referred to as X and Y. Typically, two X chromosomes result in a female while XY chromosomes result in males. These chromosomes also contain the genetic codes for the production of essential proteins, and the disproportion in chromosomes in XY individuals caused by them carrying only

Iowa state universityUnited statesNicole valenzuelaPhilosophical transactions of the royal societyNorth americaPhilosophical transactionsRoyal societyஐயுவா நிலை பல்கலைக்கழகம்ஒன்றுபட்டது மாநிலங்களில்நிக்கோல் வலென்சுலாதத்துவ பரிவர்த்தனைகள் ஆஃப் தி அரச சமூகம்வடக்கு அமெரிக்காதத்துவ பரிவர்த்தனைகள்அரச சமூகம்