SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Packages Proteins
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Transports/Contains Organelles
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Holds Genetic Materials (DNA, RNA, Ribosomes, etc)
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Power House
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Detailed explanation-1: -The nucleolus is the largest nuclear organelle and is the primary site of ribosome subunit biogenesis in eukaryotic cells. It is assembled around arrays of ribosomal DNA genes, forming specific chromosomal features known as nucleolar organizing regions (NORs) which are the sites of ribosomal DNA transcription.
Detailed explanation-2: -The primary function of the nucleolus is in facilitating ribosome biogenesis, through the processing and assembly of rRNA into preribosomal particles.
Detailed explanation-3: -The nucleolus contains DNA, RNA and proteins. It is a ribosome factory. Cells from other species often have multiple nucleoli.
Detailed explanation-4: -In the 1960s, it was settled that the nucleolus houses both DNA and RNA, the latter of which being transcribed there (Fakan and Bernhard 1971; Granboulan and Granboulan 1964, 1965).
Detailed explanation-5: -RNA-In addition to DNA the nucleus holds another type of nucleic acid called RNA (ribonucleic acid). RNA plays an important role in making proteins called protein synthesis or translation. DNA replication-The nucleus can make exact copies of its DNA.