Cell organelles like the nucleus, mitochondria, and chloroplasts contain their own DNA which encodes some of their proteins. Ribosomes are composed of ribosomal RNA (rRNA) and proteins, but they do not possess their own DNA. The genes for ribosomal RNA are located in the nuclear DNA, and ribosomal proteins are synthesized in the cytoplasm based on mRNA transcribed from nuclear DNA.
Which one of the following cell organelles does NOT possess its own genetic material encoding proteins ?
Asked in UPSC NDA 1 2019 · Topic: Cell (Ribosomes: Structure and Role in Protein Synthesis)
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