What is Drosophila pseudoobscura?
Q: What is Drosophila pseudoobscura?
A: Drosophila pseudoobscura is a species of fruit fly.
Q: Why is it used extensively in lab studies?
A: Drosophila pseudoobscura is used extensively in lab studies of the genetics of natural populations.
Q: Who first used Drosophila pseudoobscura in lab studies?
A: Theodosius Dobzhansky and his colleagues first used Drosophila pseudoobscura in lab studies.
Q: What were they interested in?
A: They were interested in natural selection, genetic drift, and other aspects of population genetics.
Q: What did Diane Dodd do in 1989?
A: In 1989, Diane Dodd gave laboratory populations of D. pseudoobscura two different food types, starch and maltose.
Q: What happened after eight generations with the different foods?
A: They rapidly evolved into two distinct groups after only eight generations with the different foods.
Q: What was claimed as an example of speciation by reproductive isolation?
A: As the two groups both showed a strong preference for mating with their own type, this was claimed as an example of speciation by reproductive isolation.
