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Most popular sex-experiment animal
The fruit fly Drosophila (also called the vinegar fly or pomace fly) has been used more than
any other animal in
sex experiments and research into various aspects of genetics. It was first established as a
laboratory animal in
America during the first decade of the twentieth century. It proved an ideal subject for
breeding experiments since
it reproduces prolifically in milk bottles and 25 generations can be obtained within a year. The
chromosomes have
been observed directly and a wealth of genetic information has been obtained by a variety of
experimental
procedures. Drosophila has made a fundamental contribution to the science of cytogenetics in
general and to the
genetics of sex determination in particular.