Assume that you are told that a particular organism,Drosophila,has the XO chromosome complement.You are also told that the autosomal complement is a normal 2n.You know that in humans the XO complement is female determining.Would you be correct in assuming that the Drosophila sex for XO is also female? Choose the answer that includes the correct explanation.

Question

Quizplus · Accepted Answer

In Drosophila, sex determination is based on the balance between the number of X chromosomes and haploid sets of autosomes, known as the X:A ratio. The absence of a Y chromosome does not necessarily determine the sex in Drosophila, unlike humans where the presence of a Y chromosome determines male sex. Therefore, it cannot be assumed that the XO complement in Drosophila is female. Instead, the sex of Drosophila with the XO complement will depend on the X:A ratio, which determines whether the organism develops as male or female.

Assume That You Are Told That a Particular Organism,Drosophila,has the XO