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