- A Determine the exact nucleotide sequence of isolated DNA fragments
- B Sort and analyze individual cells by size, shape, and fluorescence markers
- C Generate cloned organisms through somatic cell nuclear transfer methods
- D Amplify target DNA sequences through repeated thermal cycling steps
Correct answer: B. Sort and analyze individual cells by size, shape, and fluorescence markers
Explanation: Flow cytometry: cells in suspension pass through a laser beam. Detects size, complexity, and fluorescent markers. Used for cell counting, sorting, immunophenotyping.
Concept context
GM crops, transgenic animals, gene therapy, molecular diagnostics, and bioethics. Frequent 2–3 mark questions in NEET.