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  • Why does bacteria used in recombinant DNA technology?
    Bacteria are widely used in recombinant DNA technology for several key reasons:

    1. Simplicity and ease of manipulation:
    - Bacteria have a relatively simple genetic makeup compared to eukaryotes, making it easier to manipulate their DNA.
    - They have a single circular chromosome and lack the complex regulatory mechanisms found in eukaryotic cells.

    2. Rapid growth and high yield:
    - As bactérias se reproduzem muito rapidamente através da fissão binária, permitindo a produção em larga escala de proteínas recombinantes ou outros produtos em pouco tempo.
    - Their high growth rate allows for efficient and economical production.

    3. Well-characterized genetics:
    - Many bacterial species have been extensively studied, and their genetic systems are well understood.
    - Os pesquisadores desenvolveram uma vasta gama de ferramentas e técnicas para manipular o DNA bacteriano, incluindo plasmídeos, enzimas de restrição e vetores de clonagem de genes.

    4. Ability to express foreign genes:
    - Bacteria can be engineered to express foreign genes introduced through recombinant DNA technology.
    - Their protein synthesis machinery can translate and fold the foreign proteins into functional forms.

    5. Custo-efetividade:
    - Bacteria are relatively inexpensive to culture and maintain, making them a cost-effective system for producing recombinant proteins.

    6. Safety:
    - Muitas cepas bacterianas usadas na tecnologia de DNA recombinante são consideradas seguras para uso laboratorial, embora o manuseio e a contenção cuidadosos sejam cruciais.

    Examples of bacterial uses in recombinant DNA technology:

    * Produção de insulina: Bacteria are used to produce human insulin, a protein crucial for diabetes treatment.
    * Produção de hormônios de crescimento: Recombinant bacteria can produce human growth hormone, used to treat growth deficiencies.
    * Vacinas : Bacterial systems are used to produce vaccines against various diseases, including hepatitis B and pertussis.
    * Enzyme production: Bacteria are engineered to produce enzymes with industrial applications, such as proteases and lipases.

    No geral, a combinação de simplicidade, crescimento rápido, genética bem caracterizada e a capacidade de expressar genes estranhos tornam as bactérias uma ferramenta inestimável para a tecnologia de DNA recombinante. They have revolutionized the production of pharmaceuticals, diagnostics, and various other products.
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