While female and male beetles both contain twenty diploid chromosomes, males have one smaller chromosome than in females. What can be inferred from this observation?
◦ Males require fewer genes than females.
◦ The number of autosomal chromosomes varies between gametes.
◦ Crossing over occurs between homologous chromosomes.
◦ Biological sex is determined by the presence of an X or Y chromosome.
◦ Chromosomes assort independently to determine biological sex.