What Insight Did Nettie Stevens's Studies of the Beetle Tenebrio

Multiple Choice

What insight did Nettie Stevens's studies of the beetle Tenebrio molitor provide about the chromosome theory of inheritance?

A) Genes are located on chromosomes.
B) The number of autosomal chromosomes varied between gametes.
C) Crossing over occurs between homologous chromosomes.
D) Sex is determined by the presence of an X or Y chromosome in the male gamete.
E) Chromosomes assort independently into the haploid gametes.