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Which one of the following has its own DNA?
  • a)
    Mitochondria
  • b)
    Dictyosome
  • c)
    Lysosome
  • d)
    Peroxisome
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which one of the following has its own DNA?a)Mitochondriab)Dictyosomec...
In mitochondria, the inner membrane space is filled with a matrix which contains dense granules  along  with  ribosomes  and mitochondrial DNA. The mitochondrial DNA is circular in nature. There number varies from 2-6. Besides DNA, a mitochondrion has RNA and its ribosomes also. Thus, a complete protein synthesizing machinery is present in mitochondria, which suggests  the semi-autonomous nature of mitochondria. Dictyosome, lysosome and peroxisome do not have their own DNA.
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Most Upvoted Answer
Which one of the following has its own DNA?a)Mitochondriab)Dictyosomec...
Mitochondria have their own DNA

Mitochondria are organelles found in eukaryotic cells that are responsible for producing energy in the form of ATP. They have their own DNA, which is separate from the nuclear DNA found in the cell's nucleus.

Structure of mitochondria

Mitochondria have a double membrane structure, with an outer membrane and an inner membrane that is folded into structures called cristae. The space between the two membranes is called the intermembrane space, while the space inside the inner membrane is called the mitochondrial matrix.

Function of mitochondria

The main function of mitochondria is to produce energy in the form of ATP through a process called cellular respiration. This process involves the breakdown of glucose and other molecules in the presence of oxygen to release energy that is then used to produce ATP.

DNA of mitochondria

The DNA of mitochondria is circular and is made up of approximately 16,500 base pairs. It encodes for some of the proteins and RNA molecules that are necessary for the mitochondria to produce energy through cellular respiration.

Inheritance of mitochondrial DNA

Mitochondrial DNA is inherited maternally, which means that it is passed down from the mother to her offspring. This is because the egg cell contains more mitochondria than the sperm cell, and the mitochondria in the sperm are usually destroyed upon fertilization.

Conclusion

Mitochondria are organelles that are responsible for producing energy in eukaryotic cells. They have their own DNA, which is separate from the nuclear DNA found in the cell's nucleus. This DNA encodes for some of the proteins and RNA molecules necessary for the mitochondria to produce energy through cellular respiration. Mitochondrial DNA is inherited maternally.
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Community Answer
Which one of the following has its own DNA?a)Mitochondriab)Dictyosomec...
Answer is mitochondria

. .. Because.....

In mitochondria, the inner membrane space is filled with a matrix which contains dense granules along with ribosomes and mitochondrial DNA. The mitochondrial DNA is circular in nature. There number varies from 2-6. Besides DNA, a mitochondrion has RNA and its ribosomes also.. Thus, a complete protein synthesizing machinery is present in mitochondria, which suggests the semi-autonomous nature of mitochondria, Dictyosome, lysosome and peroxisome do not have their own DNA.
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Which one of the following has its own DNA?a)Mitochondriab)Dictyosomec)Lysosomed)PeroxisomeCorrect answer is option 'A'. Can you explain this answer?
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