Advertisements
Advertisements
Question
Mitochondria DNA is ______.
Options
Naked
Circular
Double-stranded
All of the above
Solution
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.
APPEARS IN
RELATED QUESTIONS
Plasma membrane is Fluid-structure due to presence of ______.
Choose the correct option.
Cell Wall is present in
Choose the correct option.
Golgi body is absent in
Answer the following question.
Is nucleolus covered by membrane?
Answer the following question.
The RBC surface normally shows glycoprotein molecules. When determining blood group do they play any role?
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.
Identify cell structure or organelle from it's the description below.
Carrys out photosynthesis
