Which one of the following groups of cellular organelles contains DNA?

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Q: 7 (NDA-II/2018)

Which one of the following groups of cellular organelles contains DNA?

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,24,20,24,6,9,5

keywords: 

{'cellular organelles': [0, 0, 0, 1], 'mitochondria': [2, 0, 1, 2], 'nucleus': [1, 0, 1, 0], 'dna': [3, 1, 1, 2], 'chloroplast': [5, 0, 2, 6], 'golgi bodies': [7, 0, 3, 5], 'plasma membrane': [2, 0, 0, 0]}

The correct answer is option 1: Mitochondria, nucleus, chloroplast.

Mitochondria, nucleus, and chloroplast are organelles found in eukaryotic cells and they contain their own DNA. Let`s examine each of these organelles briefly:

1. Mitochondria: Mitochondria are known as the powerhouses of the cell as they produce energy in the form of ATP. They have their own circular DNA called mitochondrial DNA (mtDNA) which is separate from the DNA in the nucleus.

2. Nucleus: The nucleus is the control center of the cell and contains the majority of the cell`s DNA. The DNA in the nucleus is packaged into structures called chromosomes.

3. Chloroplast: Chloroplasts are found in plant cells and carry out photosynthesis, producing energy-rich molecules like glucose. They also have their own circular DNA called chloroplast DNA (cpDNA), which is separate from the nuclear DNA.

Option 2 (Mitochondria, Golgi bodies, nucleus) is incorrect as the Golgi bodies are responsible for modifying, sorting, and packaging proteins and do not contain DNA.

Option 3 (Mitochondria, plasma membrane, nucleus) is incorrect as the plasma membrane is involved in maintaining cell shape and

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