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  •  Why mitochondria is known as a semi-autonomous organelle?Option: 1 They possess their own ribosomes, mRNA, tRNA, and DNA.</

 Why mitochondria is known as a semi-autonomous organelle?

Option: 1

They possess their own ribosomes, mRNA, tRNA, and DNA.


Option: 2

They have the ability to reproduce autonomously and use ribosomes to produce their proteins.


Option: 3

They possess their own DNA but lacks ribosomes, mRNA, and tRNA


Option: 4

Both a and b


Answers (1)

best_answer

Mitochondria are known as semi-autonomous organelles because they possess characteristics of both autonomy and dependence on the host cell.

  • They possess their own ribosomes, mRNA, tRNA, and DNA. This statement is true. Mitochondria have their own set of ribosomes, transfer RNA (tRNA), messenger RNA (mRNA), and circular DNA molecules called mitochondrial DNA (mtDNA). These components allow mitochondria to carry out protein synthesis independently to some extent.
  •  They have the ability to reproduce autonomously and use ribosomes to produce their proteins. This statement is also true. Mitochondria can reproduce by a process called fission, which is independent of the cell's division. They have their own internal machinery, including ribosomes, which enables them to produce some of their proteins independently.

Therefore, Option 4 is the correct answer 

 

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Sayak

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