LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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messenger RNA
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mitochondrial RNA
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transfer RNA
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ribosomal RNA
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Detailed explanation-1: -The mitochondrial small and large ribosomal subunits contain 12 S and 16 S rRNAs encoded by mtDNA.
Detailed explanation-2: -The RNA regulation within mitochondria is organised within specialised, membraneless, compartments of RNA-protein complexes, called the Mitochondrial RNA Granules (MRGs). MRGs were first identified to contain nascent mRNA, complexed with many proteins involved in RNA processing and maturation and ribosome assembly.
Detailed explanation-3: -The four types of RNA are mRNA, tRNA, rRNA and heterogeneous nuclear RNA or hn RNA. they have different functional roles in the cell.
Detailed explanation-4: -Each cell contains hundreds to thousands of mitochondria, which are located in the fluid that surrounds the nucleus (the cytoplasm). Although most DNA is packaged in chromosomes within the nucleus, mitochondria also have a small amount of their own DNA. This genetic material is known as mitochondrial DNA or mtDNA.