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What does 's' refer to a 70s and 80s rib...

What does 's' refer to a 70s and 80s ribosome ?

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In boy 70 .s. ribosomes, and 80 .s. ribosomes, .s. stands for the sedimentation coefficient. [expressed in Svedberg unit]. It is indirectly a measure of density and size.
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Knowledge Check

  • Eukaryotic cells have a well organised nucleus and a) Both 70s and 80s types of ribosomes b) Flagella associated with 9 + 2 organisation c) Shows cytoplasmic streaming d) Their DNA is complexed with histones to constitute the chromatin

    A
    All are correct
    B
    Only 1 is incorrect
    C
    Only 3 and 4 are correct
    D
    Both 2 and 4 are incorrect

  • 70s and 80s ribosomes both are present in

    A
    Mitochondria
    B
    Chloroplast
    C
    Prokaryotic cells
    D
    Eukaryotic cells

  • Circular DNA, RNA fragments and 70S ribosomes are seen in

    A
    ER
    B
    Mitochondria
    C
    Chloroplast
    D
    Both (2) and (3)

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    An organism exclusively with 70S type of ribosomes contains one of the following

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