Nüsslein-Volhard and Wieschaus Used Drosophila Melanogaster as a Model Organism

Multiple Choice

Nüsslein-Volhard and Wieschaus used Drosophila melanogaster as a model organism in genetic screens to examine developmental biology. Why was Drosophila a good model organism for this study?
Please select all that apply.

A) Drosophila embryos can be studied easily
B) Haploids can grow so no consideration of dominant and recessive alleles is needed
C) Drosophila has a short generation time
D) Eye color can be easily followed in Drosophila
E) Balancer chromosomes are available in Drosophila