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प्रश्न
Mitochondria DNA is ______.
पर्याय
Naked
Circular
Double-stranded
All of the above
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उत्तर
All of the above
Explanation:
Mitochondrial DNA (mtDNA) is a naked, circular, double-stranded genetic material that is not part of chromosomes. It is constantly exposed to the matrix, which contains many reactive oxygen species and free radicals.
Circular: Like bacterial DNA, it has a circular shape, reflecting the evolutionary origin of mitochondria from prokaryotic ancestors (endosymbiotic theory).
Double-stranded: It consists of two complementary strands, forming a stable double-helix structure.
Naked: Unlike nuclear DNA, mitochondrial DNA is not associated with histone proteins.
Mitochondrial DNA codes for essential proteins involved in cellular respiration and ATP production, supporting the energy needs of the cell.
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संबंधित प्रश्न
Choose the correct option.
Plasma membrane is ______.
Answer the following question.
Is nucleolus covered by membrane?
How cytoplasm differs from nucleoplasm in chemical composition?
Distinguish between smooth and rough endoplasmic reticulum.
Answer the following question.
Mitochondria are power house of the cell. Give reasons.
Label the diagram and write down the detail of concept in your word.
Label the diagram and write down the detail of the concept in your word.
Complete the flow chart.
Identify cell structure or organelle from its description below.
Selectivelly permeable.
Which of the following is not present in mitochondrial matrix?
