Which technique can be used to detect and identify traces of poison present in the stomach wash of a person ?

Q. X technique is now routinely used to detect HIV in suspected AIDs patients. It is being used to detect mutations in genes in suspected cancer patients too. It is a powerful technique to identify many other genetic disorders. Identify X-

Q. Which of the following techniques can be used to detect genetic disorders in humans?

Q. The organic compound present in traces in living cells can be detected and isolated by

Q. Name one technique which can detect cancerous tissue inside the body of a person.