More Questions from Biology

Cell biology — prokaryotes: Prokaryotic cells lack which structural feature found in eukaryotes? Answer with the defining feature absent in prokaryotes. Choose the correct feature.

General Knowledge Biology Difficulty: Easy
Choose an option
  • A
    A true nucleus with a nuclear membrane
  • B
    Ribosomes for protein synthesis
  • C
    Plasma (cell) membrane
  • D
    DNA as genetic material

Answer

Correct Answer: A true nucleus with a nuclear membrane

Explanation

Concept / ApproachProkaryotes lack a membrane-bound nucleus and other membrane-bound organelles. Their DNA resides in a nucleoid region without a nuclear envelope.

Why others are incorrectProkaryotes do have ribosomes (70S), a plasma membrane, and DNA.

Final AnswerLack of a true nucleus (nuclear membrane) is the defining absence.

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