2. Consider the following statements: (a) Karyotypes are generally prepared from culture cells (b) Quinacrine mustard stains G-C-rich areas (c) In situ hybridisation technique is used to locate definite areas on chromosomes (d) Flow cytometry technique is useful in the detection of deletion, duplication and aneuploidy The correct statements are: (a) All (b) B, C and D (c) A, C and D (d) CandD