https://www.khanacademy.org/science/jnv-board-preparation-class-12-biology/x54e191b2bf661780:week-2/x54e191b2bf661780:biotechnology-principles-and-processes/e/biotechnology-principles-and-processes 2026-04-08T00:54:09.631945657Z Biotechnology: Principles and Processes This exercise tests skills on biotechnology, its principles and processes. Nivedhitha exercise https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/biotechnology/v/the-polymerase-chain-reaction-pcr 2023-06-22T09:47:49.118446933Z Polymerase chain reaction (PCR) PCR (Polymerase Chain Reaction) is a vital technique in molecular biology, enabling researchers to amplify specific DNA fragments exponentially. Essential for cloning, forensics, and medical diagnostics, PCR involves three main steps: denaturation, annealing, and extension. By using heat-resistant Taq polymerase and repeating cycles, scientists can generate billions of DNA copies within hours, significantly enhancing their ability to study and manipulate genetic material. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/e14bb2a8-0e01-4cee-a733-1acf21da0d45_1280_720_base.png Polymerase chain reaction (PCR) PCR (Polymerase Chain Reaction) is a vital technique in molecular biology, enabling researchers to amplify specific DNA fragments exponentially. Essential for cloning, forensics, and medical diagnostics, PCR involves three main steps: denaturation, annealing, and extension. By using heat-resistant Taq polymerase and repeating cycles, scientists can generate billions of DNA copies within hours, significantly enhancing their ability to study and manipulate genetic material. https://cdn.kastatic.org/ka-youtube-converted/nHi-3jP6Mvc.mp4/nHi-3jP6Mvc.mp4 594 Biotechnology: Principles and Processes https://www.khanacademy.org/science/jnv-board-preparation-class-12-biology/x54e191b2bf661780:week-2/x54e191b2bf661780:biotechnology-principles-and-processes/v/gene-cloning 2024-11-19T12:36:34.874989568Z Gene Cloning Can copies of specific genes be made at the molecular level? Can DNA be copied from one organism and pasted into the genome of another organism? Watch this video to answer these questions and to understand more gene cloning. Nivedhitha Suresh video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Gene Cloning Can copies of specific genes be made at the molecular level? Can DNA be copied from one organism and pasted into the genome of another organism? Watch this video to answer these questions and to understand more gene cloning. https://cdn.kastatic.org/ka-youtube-converted/1U9Yg1VVu3c.mp4/1U9Yg1VVu3c.mp4 507 Biotechnology: Principles and Processes https://www.khanacademy.org/science/ka-biology-grade-12/x406cf103e0507862:in-in-biotechnology-principles-and-processes/x406cf103e0507862:restriction-digests-cloning-and-transformation/v/restriction-enzymes-in 2024-11-19T12:36:34.874989568Z Restriction Enzymes Is there a way to cut DNA into fragments? Are there any "scissors" for that? How would they work? Watch this video to understand more about restriction enzymes aka molecular scissors, how they work, and some examples. Nivedhitha Suresh video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Restriction Enzymes Is there a way to cut DNA into fragments? Are there any "scissors" for that? How would they work? Watch this video to understand more about restriction enzymes aka molecular scissors, how they work, and some examples. https://cdn.kastatic.org/ka-youtube-converted/1wK4bIjIOqU.mp4/1wK4bIjIOqU.mp4 482 Biotechnology: Principles and Processes