試題詳解

58.Drosophila is a model animal that is often used in genetic research. Which of the following is the best method for distinguishing the sex of Drosophila?
(A) The Y chromosome plays a pivotal role in determining the male sex. Drosophila with Y chromosome is male, the rest is female.
(B) Sex combs are located only on the forelegs of male, but not female Drosophila.
(C) Male Drosophila is brighter and larger than female.
(D) Male Drosophila has red eyes, and female Drosophila has white eyes.
(E) Male Drosophila has curled wings, and female Drosophila has flat wings.