In the given figure,what does the part labeled '$a$' represent and what is its function?

  • A
    Nuclear membrane,protection of the nucleus
  • B
    Outer membrane,protection of the nucleolus
  • C
    Nuclear pores,synthesis of ribosomal $RNA$
  • D
    Nuclear pores,movement of $RNA$ and protein molecules between the cytoplasm and nucleoplasm

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Similar Questions

Discuss briefly the role of the nucleolus in cells actively involved in protein synthesis.

Match column-$I$ with column-$II$ and choose the correct option.
Column-$I$ (Chromosome) Column-$II$ (Position of Centromere)
$A$. Metacentric $I$. At the tip
$B$. Submetacentric $II$. Almost near the tip
$C$. Acrocentric $III$. At the middle
$D$. Telocentric $IV$. Slightly away from the middle

$A$ chromosome having the centromere in the middle is called .......

Nucleolus is

The chromosomes in which the centromere is situated close to one end are:

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