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In what part of the cell does the Translation phase of protein synthesis occur? A. nucleus...

In what part of the cell does the Translation phase of protein synthesis occur?

A. nucleus

B. cell wall

C. mytochondria

D. cytoplasm

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Answer #1

Ans. Correct option- D. Cytoplasm. Translation of mRNA into protein requires ribosomes (the physical site of protein synthesis) and mature mRNA. Both the functional ribosomes (ribosomal subunits) and mature mRNA are found only in cytoplasm. Therefore, the process of translation occurs in the cytoplasm.

# Option- A. Incorrect. DNA replication and transcription, but NOT translation, occurs in nucleus.

# Option- B. Incorrect. Cell wall does not carry out these activities.

# Option- C. Incorrect. Mitochondria also has 70s ribosomes, and carries out translation of mitochondrial mRNAs, too.

However, all of the genomic mRNAs (except the mRNAs transcribed from mitochondrial genome) are translated in cytoplasm only.

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