Question:
In eukaryotes, after translation, many proteins are found in
In eukaryotes, after translation, many proteins are found in
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Mitochondria and chloroplast:
- Import nuclear-encoded proteins.
- Targeting signals: Transit peptides.
- These organelles are semi-autonomous.
- Import nuclear-encoded proteins.
- Targeting signals: Transit peptides.
- These organelles are semi-autonomous.
Updated On: Sep 1, 2026
- Nucleus
- Mitochondria
- Chloroplast and nucleus
- Mitochondria and chloroplast
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of protein targeting and localization.
Step 2: Detailed Explanation:
Many proteins after translation are found in mitochondria and chloroplast.
These organelles have their own genomes but also import many nuclear-encoded proteins.
Proteins are targeted to these organelles by specific transit peptides.
Nucleus (A): Some proteins are targeted to the nucleus.
Chloroplast and nucleus (C): Not as common.
Mitochondria (B): Not complete (chloroplast also).
Thus, proteins are found in both mitochondria and chloroplast.
Step 3: Final Answer:
Thus, many proteins are found in mitochondria and chloroplast, which corresponds to option (D).
[0.5cm]
This question tests knowledge of protein targeting and localization.
Step 2: Detailed Explanation:
Many proteins after translation are found in mitochondria and chloroplast.
These organelles have their own genomes but also import many nuclear-encoded proteins.
Proteins are targeted to these organelles by specific transit peptides.
Nucleus (A): Some proteins are targeted to the nucleus.
Chloroplast and nucleus (C): Not as common.
Mitochondria (B): Not complete (chloroplast also).
Thus, proteins are found in both mitochondria and chloroplast.
Step 3: Final Answer:
Thus, many proteins are found in mitochondria and chloroplast, which corresponds to option (D).
[0.5cm]
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