Final answer:
Accessory gland products (Acps) in Drosophila are enzymes, and the molecules produced by organs in the endocrine system are likely hormones such as peptide or glycoprotein hormones. Insulin produced by molecular cloning is a recombinant protein.
Step-by-step explanation:
The accessory gland products (Acps) in Drosophila are a type of enzyme. These Acps are a complex mixture of proteins that are transferred along with sperm during mating and they perform various functions including modifying female behavior and physiology after mating, as well as affecting the fertilization process. Additionally, proteins perform an array of functions in cells -- they can act as enzymes, regulatory molecules, transport proteins, or even as antibodies defending against foreign particles. In the case of organs A and B, if they form part of the endocrine system, A1 and B1 are likely to be some type of hormone molecules like peptide hormones or glycoprotein hormones given that the endocrine system primarily secretes hormones.