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Madhu Mati

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  1. Asked: November 25, 2021In: Class 9 Science

    Tincture of iodine has antiseptic properties. This solution is made by dissolving

    Madhu Mati
    Added an answer on November 25, 2021 at 11:28 am

    (D) iodine in alcohol Iodine tincture is made by dissolving iodine in alcohol.

    (D) iodine in alcohol
    Iodine tincture is made by dissolving iodine in alcohol.

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  2. Asked: November 25, 2021In: Class 9 Science

    What type of motion is described by the rocket?

    Madhu Mati
    Added an answer on November 25, 2021 at 11:28 am

    [B] Accelerated Motion of rocket is an accelerated motion.

    [B] Accelerated
    Motion of rocket is an accelerated motion.

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  3. Asked: November 25, 2021In: Class 9 Science

    The statement “For every action there is an equal and opposite reaction”, is related to which of the following?

    Madhu Mati
    Added an answer on November 25, 2021 at 11:28 am

    [C] Newton's third law Newton's third law states that "For every action there is an equal and opposite reaction.

    [C] Newton’s third law
    Newton’s third law states that “For every action there is an equal and opposite reaction.

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  4. Asked: October 12, 2021In: Class 12 Biology

    The restriction enzymes that are used in construction of recombinant DNA molecule are endonucleases which cut the DNA at ‘specificrecognition sequence’. What would be the disadvantage if they would not cut the DNA at specific-recognition sequence?

    Madhu Mati
    Added an answer on October 12, 2021 at 10:21 am

    If the restriction enzymes would cut DNA at random sites instead of at specific sites, then the DNA fragments obtained will not have ‘sticky ends’. In the absence of sticky ends, construction of recombinant DNA molecule would not be possible.

    If the restriction enzymes would cut DNA at random sites instead of at specific sites, then the DNA fragments obtained will not have ‘sticky ends’. In the absence of sticky ends, construction of recombinant DNA molecule would not be possible.

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  5. Asked: October 12, 2021In: Class 12 Biology

    A wine maker and a molecular biologist who has developed a recombinant vaccine, both claim themselves to be biotechnologist. Who in your opinion is right?

    Madhu Mati
    Added an answer on October 12, 2021 at 10:21 am

    Both. As biotechnology is a very wide area which deals with techniques of using a ‘natural’ organism (or its parts) as well as genetically modified organism to produce products and processes useful for mankind. A wine maker employs a strain of yeast to produce wine by fermentation (a natural phenomeRead more

    Both. As biotechnology is a very wide area which deals with techniques of using a ‘natural’ organism (or its parts) as well as genetically modified organism to produce products and processes useful for mankind. A wine maker employs a strain of yeast to produce wine by fermentation (a natural phenomenon), while the molecular biologist has cloned gene for the antigen (that is used as vaccine) in an organism which allows the
    production of the antigen in large amount.

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