Banding technique most commonly employed for cytogenetic analysis: (A) G banding, (B) C banding, (C) R banding, (D) Q banding
Answer is A. G-banding (most common) R-banding Q-banding C-banding T-banding G stands for Giemsa R stands for "reverse" Q stands for Quinacrine Fluoroescent dye C stands for Constitutive heterochromatin or Centromere T stands for telomeres to produce a visible karyotype Dark regions are heterochromatin (AT) Light regions are Euchromatin (GC) Dark regions are euchromatin Bright regions are heterochromatin