question_answer

(i)  How is bioreactor useful for production of desired products?

(ii) How do we elute DNA of desired quality in gel electrophoresis?

Answer:

(i)  Bioreactor it provides optimum conditions for culture growth by providing optimum pH, temperature, substrate, salt, vitamins and oxygen.

(ii) The steps in elution are -

(a) Separated DNA fragments are visualized after staining with ethidium bromide.

(b) Illumination with UV light that imparts orange colour.

(c) Cutting and separating bands of DNA looking through UV protection glasses.