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Multiple Choice
Which of the following organelles contain their own DNA?
A
Endoplasmic reticulum and Golgi apparatus
B
Ribosomes and vacuoles
C
Lysosomes and peroxisomes
D
Mitochondria and chloroplasts
Verified step by step guidance
1
Understand the concept of organelles containing their own DNA: In eukaryotic cells, some organelles have their own DNA, which allows them to produce certain proteins independently of the nuclear DNA. These organelles are involved in energy production and photosynthesis.
Recall the key organelles that contain their own DNA: Mitochondria and chloroplasts are the two organelles known to have their own DNA. Mitochondria are responsible for cellular respiration, while chloroplasts are involved in photosynthesis in plant cells.
Learn why mitochondria and chloroplasts have their own DNA: These organelles are thought to have originated from ancient prokaryotic cells through endosymbiosis. Their DNA is circular, similar to bacterial DNA, and they can replicate independently within the cell.
Compare the other organelles listed in the options: Endoplasmic reticulum, Golgi apparatus, ribosomes, vacuoles, lysosomes, and peroxisomes do not contain their own DNA. They rely on the nuclear DNA for instructions to produce proteins and enzymes.
Conclude that the correct answer is mitochondria and chloroplasts, as they are the only organelles in the list that contain their own DNA, enabling them to function semi-autonomously within the cell.