Microbiology An IgG2 molecule is composed of? A One gamma1 chain and two kappa chains B Two gamma1 chains and one kappa and one lambda chain C Two gamma1 chains and two kappa chains D Two gamma2 chains and two kappa chains 💡 Explanation An IgG2 molecule is composed of? ✓ Correct Answer: D. Two gamma2 chains and two kappa chains