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What does competent refer to in competen...

What does competent refer to in competent cells used in transformation experiments?

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DNA being a hydrophilic molecule can not pass through cell m embranes . Therefore, the bacteria should be made competent to accept the DNA molecuels. Competent means bacterial cells on treatment with chemicals like `CaCl_(2)`, are made capable of taking up foreign DNA.
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Knowledge Check

  • The term "competent" refers to

    A
    increasing the competition between cells
    B
    making cells impermeable for DNA
    C
    increasing the efficiency with which DNA enters the bacterium through pores in its cell wall
    D
    making cells permeable for divalent cations

  • The cells of E. coli may be made competent to take up external DNA in the process of transformation by expos- ing the cell to:

    A
    cobalt chloride
    B
    calcium chloride
    C
    radiation
    D
    sulphuric acid

  • What is the inference extracted from Griffith's transformation experiments?

    A
    Replication of DNA is semi-conservative in nature.
    B
    DNA is the genetic material
    C
    There is some genetic material, which is responsible for transformation.
    D
    Bacteria lacks genetic material.

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