Which of the following is present in both prokaryotic and eukaryotic cells?

  • A
    Ribosomes
  • B
    Mitochondria
  • C
    $ER$
  • D
    Nucleus

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Ribosomes of bacteria, mitochondria, prokaryotes, and chloroplasts are of which type (in $S$ type)?

"Palade particles" are .....

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Many ribosomes may associate with a single $mRNA$ to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as

Which cell organelle is described by the following statements?
$(A)$ Granular structure.
$(B)$ First observed under an electron microscope as dense particles by $George\, Palade$.
$(C)$ Composed of $RNA$ and proteins.
$(D)$ Not surrounded by any membrane.

$A$ polysome is formed by:

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