The Drosophila melanogaster, also known as the fruit fly, was the primary research subject for Thomas Morgan. In 1910, Morgan used the fruit fly as an experiment to discover new mutations which could represent new species. Using the flies to research about heredity gave way to Gregor Mendel’s confirmation of his Chromosomal Theory of Inheritance which suggests that the chromosomes are the carriers of genetic information. The sex of the fly is important when culturing Drosophila and making genetic crosses. There are factors that could determine what the sex of fly is,such as, sex comb, the male having a darker abdomen and the female fly being larger than the male fly. These are the indicators that must be used when trying to cross specific
