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Protein synthesis in an animal cell occurs:

  1. A
    Only on the ribosomes present in cytosol
  2. B
    On ribosomes present in cytoplasm as well as in mitochondria
  3. C
    Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum
  4. D
    On ribosomes present in the nucleolus as well as in cytoplasm

Solution & Step-by-step Explanation

Protein synthesis in an animal cell occurs on ribosomes present in the cytoplasm as well as in mitochondria. Ribosomes are the site of protein synthesis, and they are found in the cytoplasm and mitochondria of animal cells. So, the correct answer is option B. Notice that the other options are not correct. Protein synthesis does not occur only on ribosomes present in the cytosol, nor does it occur only on ribosomes attached to the nuclear envelope and endoplasmic reticulum. Additionally, protein synthesis does not occur on ribosomes present in the nucleolus.

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Protein synthesis in an animal cell occurs:
A
Only on the ribosomes present in cytosol
B
On ribosomes present in cytoplasm as well as in mitochondria
C
Only on ribosomes attached to the nuclear envelope and endoplasmic reticulum
D
On ribosomes present in the nucleolus as well as in cytoplasm

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