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

[amp_mcq option1=”Mitochondria, nucleus, chloroplast” option2=”Mitochondria, Golgi bodies, nucleus” option3=”Mitochondria, plasma membrane, nucleus” option4=”Chloroplast, nucleus, ribosomes” correct=”option1″]

This question was previously asked in

UPSC NDA-2 – 2018

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In eukaryotic cells, DNA is primarily located in the nucleus. Additionally, mitochondria (in both plant and animal cells) and chloroplasts (in plant cells and algae) possess their own circular DNA (mtDNA and cpDNA, respectively), which contains genes essential for their function and reproduction.

– Nucleus: Contains the majority of the cell’s genetic material in the form of linear chromosomes.
– Mitochondria: Contain a small, circular genome (mtDNA) involved in cellular respiration.
– Chloroplasts: Contain a small, circular genome (cpDNA) involved in photosynthesis.

The endosymbiotic theory suggests that mitochondria and chloroplasts originated from free-living bacteria that were engulfed by early eukaryotic cells, retaining their own genetic material and ribosomes. Golgi bodies, plasma membrane (cellular membrane), and ribosomes do not contain DNA.

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