
--- is the most stable form of RNA of the cells.
A. Messenger RNA
B. Ribosomal RNA
C. Transfer RNA
D. Soluble RNA
Answer
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Hint: RNA is a single strand of nucleotide sequence made up of double stranded DNA through the process of transcription and then RNA makes a protein through the process of translation. There are three types of RNA : rRNA,mRNA and tRNA and these have different constitutions in the cell.
Complete answer:-
To answer this question you must know about types of RNA.
RNA is comparatively less stable than DNA because of its chemistry. There are three types of RNA: rRNA, mRNA and tRNA also known as soluble RNA. Out of them rRNA is much stable because They interact with the proteins to form the ribosomes and the ribosomes are required for protein synthesis.
So, rRNA are synthesised and remain in the cells for very longer periods of time. The other forms like mRNA and tRNA are synthesised whenever there is a requirement of the specific protein. mRNA is least stable and tRNA is less stable than rRNA due to its constitution and unstructured structure.
Since rRNA is the major cellular constituents of ribosomes and ribosomes are very essential for protein synthesis
Therefore the correct option is (B) Ribosomal RNA
Note:-
RNA is not a genetic material of cells but many viruses do use RNA as their genetic material. mRNA accounts just 5% of the total RNA, rRNA is a major constituent of ribosomes,it accounts for 80% of total RNA and tRNA accounts for 15% of the total RNA present in cells. It is important due to its role in gene expression by acting as the intermediate between the genetic information encoded by DNA and protein.
Complete answer:-
To answer this question you must know about types of RNA.
RNA is comparatively less stable than DNA because of its chemistry. There are three types of RNA: rRNA, mRNA and tRNA also known as soluble RNA. Out of them rRNA is much stable because They interact with the proteins to form the ribosomes and the ribosomes are required for protein synthesis.
So, rRNA are synthesised and remain in the cells for very longer periods of time. The other forms like mRNA and tRNA are synthesised whenever there is a requirement of the specific protein. mRNA is least stable and tRNA is less stable than rRNA due to its constitution and unstructured structure.
Since rRNA is the major cellular constituents of ribosomes and ribosomes are very essential for protein synthesis
Therefore the correct option is (B) Ribosomal RNA
Note:-
RNA is not a genetic material of cells but many viruses do use RNA as their genetic material. mRNA accounts just 5% of the total RNA, rRNA is a major constituent of ribosomes,it accounts for 80% of total RNA and tRNA accounts for 15% of the total RNA present in cells. It is important due to its role in gene expression by acting as the intermediate between the genetic information encoded by DNA and protein.
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