Question

Which genetic condition is characterized by an extra copy of chromosome 21?

A Kabuki syndrome
B Klinefelter syndrome
C Down syndrome
D Cockayne syndrome
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)