Which of the following statements is false?

  • A
    The ribosomes of a polysome translate the $RNA$ into protein.
  • B
    Mitochondria divide by fragmentation.
  • C
    All cells arise from pre-existing cells.
  • D
    The lipid component of the membrane mainly consists of phosphoglycerides.

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The magnification of a light compound microscope having a $15x$ eyepiece lens and a $45x$ objective lens will be .........

Bulk drinking of fluid by cells is termed as

$A$: All organelles in a eukaryotic cell are membrane-bound.
$R$: Organelles in a prokaryotic cell are membrane-less.

Which of the following is the odd one out?

Match the following.
Column-$I$Column-$II$
$(1)$ Typical bacterial$(p)$ Site of protein synthesis
$(2)$ Ribosome$(q)$ $1-2 \ \mu m$
$(3)$ Long and branched$(r)$ Control of bacterial transformation
$(4)$ Plasmid$(s)$ Nerve cell

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