Which of the following two cell organelles have their own genetic material ?  

This question was previously asked in
NDA-II 2024 (GAT) Official Paper (Held On: 01 Sept, 2024)
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  1. Endoplasmic reticulum and plastids 
  2. Endoplasmic reticulum and mitochondria  
  3. Mitochondria and plastids 
  4. Lysosomes and Golgi apparatus 

Answer (Detailed Solution Below)

Option 3 : Mitochondria and plastids 
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CONCEPT:

Cell Organelles with Their Own Genetic Material

  • Some cell organelles contain their own DNA and can replicate independently of the cell's nuclear DNA.
  • The primary organelles that have their own genetic material are mitochondria and plastids.

EXPLANATION:

  • Mitochondria:
    • Mitochondria are known as the powerhouse of the cell as they generate most of the cell's supply of adenosine triphosphate (ATP).
    • They have their own circular DNA, which is similar to bacterial DNA, and can replicate independently of the cell's nuclear DNA.
  • Plastids:
    • Plastids are a group of plant cell organelles that include chloroplasts, chromoplasts, and leucoplasts.
    • Chloroplasts, which are involved in photosynthesis, contain their own DNA, which is also circular and similar to bacterial DNA.
    • Like mitochondria, plastids can replicate independently of the cell's nuclear DNA.

Therefore, the two cell organelles that have their own genetic material are mitochondria and plastids.

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