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The Fundamental Unit of Life — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceThe Fundamental Unit of Life1 Mark
MCQ
A eukaryotic nucleus has a:
  • A
    Porous, single membrane.
  • B
    Non-porous, single membrane.
  • ✓
    Porous, double membrane.
  • D
    Non-porous, double membrane.
✓

Answer

Correct option: C.
Porous, double membrane.

Most eukaryotic cells contain:
Nucleus – which contains $DNA$ and controls the synthesis of proteins. The nucleus contains a nucleolus, which is a dense body where ribosomes are made. The nucleus is surrounded by a double membrane, known as thenuclear envelope, with nuclear pores.

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