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  • Recombinant DNA: Definition, Applications & Technology
    DNA molecules produced by combining DNA from different sources are called recombinant DNA.

    Here's a breakdown:

    * Recombinant means combining different elements to create something new.

    * DNA stands for deoxyribonucleic acid, the molecule that carries genetic instructions in living organisms.

    Recombinant DNA technology is a powerful tool that allows scientists to manipulate and combine DNA from different sources to create new DNA molecules. This technology has applications in many fields, including:

    * Medicine: Developing new treatments for diseases like cancer and genetic disorders.

    * Agriculture: Creating crops that are resistant to pests and diseases, or have improved nutritional value.

    * Biotechnology: Producing valuable proteins and enzymes for industrial purposes.

    The process of creating recombinant DNA typically involves:

    1. Isolation: Extracting DNA from different sources.

    2. Restriction: Cutting the DNA at specific sites using enzymes called restriction enzymes.

    3. Ligation: Joining the DNA fragments together using an enzyme called DNA ligase.

    4. Transformation: Introducing the recombinant DNA into a host organism, such as bacteria or yeast.

    5. Replication: The host organism then replicates the recombinant DNA, producing many copies.

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