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Why is mRNA called "messenger RNA"?
- a)Because it is involved in the transfer of amino acids.
- b)Because it carries the genetic message from DNA for protein synthesis.
- c)Because it is a component of ribosomes.
- d)Because it synthesizes enzymes.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Why is mRNA called "messenger RNA"?a)Because it is involved in the tra...
MRNA is called "messenger RNA" because it carries the genetic message from the DNA molecule for the synthesis of a protein or a polypeptide. It acts as a messenger, delivering the instructions for protein synthesis.
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Why is mRNA called "messenger RNA"?a)Because it is involved in the tra...
Understanding mRNA: The Messenger of Genetic Information
mRNA, or messenger RNA, plays a crucial role in the process of protein synthesis within cells. Here’s why it is referred to as "messenger RNA":
Role in Transferring Genetic Information
- mRNA serves as a vital carrier of genetic instructions from DNA to the ribosomes, where proteins are synthesized.
- It is synthesized during transcription, where a specific segment of DNA is copied into RNA.
Process of Protein Synthesis
- Once mRNA is formed, it undergoes processing and then exits the nucleus into the cytoplasm.
- At the ribosome, the mRNA sequence is translated into a specific amino acid sequence, determining the structure and function of proteins.
Significance of the "Messenger" Term
- The term "messenger" aptly describes mRNA’s role, as it conveys the genetic code necessary for building proteins.
- It acts as an intermediary, relaying the information stored in DNA to the ribosome’s machinery, which then translates it into functional proteins.
Conclusion
In summary, mRNA is termed "messenger RNA" because it carries the genetic message from DNA for protein synthesis. This essential function makes it a key player in the central dogma of molecular biology, connecting the genetic blueprint of an organism to its functional proteins. Understanding this role is fundamental to grasping how genes express traits and how cells operate.
mRNA, or messenger RNA, plays a crucial role in the process of protein synthesis within cells. Here’s why it is referred to as "messenger RNA":
Role in Transferring Genetic Information
- mRNA serves as a vital carrier of genetic instructions from DNA to the ribosomes, where proteins are synthesized.
- It is synthesized during transcription, where a specific segment of DNA is copied into RNA.
Process of Protein Synthesis
- Once mRNA is formed, it undergoes processing and then exits the nucleus into the cytoplasm.
- At the ribosome, the mRNA sequence is translated into a specific amino acid sequence, determining the structure and function of proteins.
Significance of the "Messenger" Term
- The term "messenger" aptly describes mRNA’s role, as it conveys the genetic code necessary for building proteins.
- It acts as an intermediary, relaying the information stored in DNA to the ribosome’s machinery, which then translates it into functional proteins.
Conclusion
In summary, mRNA is termed "messenger RNA" because it carries the genetic message from DNA for protein synthesis. This essential function makes it a key player in the central dogma of molecular biology, connecting the genetic blueprint of an organism to its functional proteins. Understanding this role is fundamental to grasping how genes express traits and how cells operate.
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