About 272 results
Open links in new tab
  1. Polymerase chain reaction (PCR) (article) | Khan Academy

    Each step involves coupling, capping, and oxidation processes to ensure precision. After synthesis, primers are purified using techniques like HPLC and verified for accuracy.

  2. Polymerase chain reaction (PCR) (video) | Khan Academy

    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 …

  3. DNA sequencing (video) | Biotechnology | Khan Academy

    DNA sequencing involves three main steps: 1) using PCR to amplify DNA fragments, 2) introducing dideoxynucleotides that halt DNA strand elongation, and 3) employing a computer to analyze the …

  4. Molecular mechanism of DNA replication - Khan Academy

    PCR, polymerases & amplification technology products https://www.neb.com/products/pcr-polymerases-and-amplification-technologies/pcr-polymerases-and-amplification-technologies/dna-polymerase …

  5. Polymerase chain reaction (PCR) (practice) | Khan Academy

    The image below depicts a target sequence that needs to be amplified using polymerase chain reaction (PCR), and the set of primers for the same. Where should the primers bind to enable this reaction to …

  6. Gel electrophoresis (video) | Biotechnology | Khan Academy

    Since the DNA samples from vial 3 have three different lengths, does that mean three different target sequences were replicated when PCR was done and all three were later put into vial 3?

  7. Gel electrophoresis (article) | Khan Academy

    For your first question: You will do PCR of the entire sample. Then a restriction enzyme is used to cut the part you want. One restriction enzyme will make the cut on the same place in all samples. So you …

  8. DNA technology: RT-PCR analysis of POMC cDNA - Khan Academy

    Figure 1 Schematic of RT-PCR experiment. The position of the reverse transcriptase primer (Primer 1) and the positions of the PCR primers (Primers A and B) are shown. They then analyzed their …

  9. DNA sequencing (article) | Biotechnology | Khan Academy

    Although genomes are now typically sequenced using other methods that are faster and less expensive, Sanger sequencing is still in wide use for the sequencing of individual pieces of DNA, such as …

  10. Overview: DNA cloning (article) | Khan Academy

    That’s because, during a ligation, DNA fragments don’t always get “pasted” in exactly the way we intend. Instead, we must collect DNA from several colonies and see whether each one contain the right …