The GATE Grind

GATE 2024 BT – Question 17

Genetics, Cellular and Molecular Biology · Cell Biology: Post-translational modifications, protein trafficking, cell death and autophagy, extracellular matrix · 1 mark · Multiple choice

Co-translational translocation of proteins is observed in ________.

  1. endoplasmic reticulum
  2. Golgi complex
  3. mitochondria
  4. peroxisomes

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Correct answer: (A) endoplasmic reticulum

Explanation

Proteins enter the endoplasmic reticulum while they are being translated (signal peptide and SRP). Import into mitochondria and peroxisomes occurs after translation.