स्तंभ I में दिए गए जैव प्रौद्योगिकी के संक्षिप्त रूपों को स्तंभ II में उनके सही पूर्ण रूपों से सुमेलित कीजिए: स्तंभ I a) GRAS b) GMP c) SCP d) GMO स्तंभ II i) Generally Regarded As Safe (आमतौर पर सुरक्षित माना जाता है) ii) Good Manufacturing Practices (अच्छे विनिर्माण तौर-तरीके) iii) Single Cell Protein (एकल कोशिका प्रोटीन) iv) Genetically Modified Organism (आनुवंशिक रूप से संशोधित जीव)

Which of the following statements are correct with respect to DNA separation, isolation and visualization? A. The cutting of DNA is done by molecular scissors. B. The DNA fragments separate according to their size in an agarose gel, upon electrophoresis. C. The separated DNA fragments can be seen without staining when exposed to UV light. D. The separated DNA fragments, when stained with ethidium bromide, can be seen in visible light. Choose the correct answer from the options given below:

Identify the correct sequence of steps in each cycle of Polymerase Chain Reaction (PCR):