This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
Karyotyping under light microscopy is done by 
Select and explain. 
A. R banding, B. Q banding, C. G banding, D. C banding
C: G banding
Answer: C: G banding 
Explanation: G-banding, G banding, or Giemsa banding is a technique used in cytogenetics to produce a visible karyotype by staining condensed chromosomes.It is useful for identifying genetic diseases through the photographic representation of the entire chromosome complement.