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The Triplet of Three Consecutive bases on mRNA

The Triplet of Three Consecutive bases on mRNA A basic idea in molecular biology and genetics is the triplet of three consecutive bases on mRNA, often known as codons. A codon is a group of three nucleotides found in mRNA that designates an amino acid or serves as a signal to terminate protein synthesis.

All living things are formed and operate as a result of codons, which are the components of proteins. All creatures, from bacteria to people, share the same genetic code, which is composed of codons. One of the most significant molecular biology discoveries is the fact that the genetic code is shared by all living things.

Video: The genetic code in terms of codons composed of triplets of bases

The Triplet of Three Consecutive bases on mRNA

Here are some examples of the role of codons in protein synthesis:

1. Start Codon: The codon AUG is considered as the start codon, which initiates the process of protein synthesis.
2. Stop Codons: Three codons, UAA, UAG, and UGA, are considered as stop codons, which signal the end of protein synthesis.
3. Sense Codons: The codons that code for a particular amino acid is known as sense codons. For example, the codon GCA codes for the amino acid alanine.
4. Wobble: The third base of the codon can sometimes be flexible, allowing more than one codon to code for the same amino acid. This phenomenon is known as wobble. For example, the amino acid leucine can be coded by the codons CUC, CUA, CUG, and UUA.
5. Redundancy: The genetic code is redundant, meaning that multiple codons can code for the same amino acid. This redundancy allows for genetic variations without altering the encoded protein.
6. Synonymous codons: The codons that code for the same amino acid are called synonymous codons. For example, the amino acid serine can be coded by the codons UCU, UCC, UCA, and UCG.

In conclusion, the Triplet of Three Consecutive bases on mRNA, also known as codons, is a fundamental concept in molecular biology and genetics. Codons play a vital role in the process of protein synthesis and the universality of the genetic code is one of the most important discoveries in molecular biology. Understanding the role of codons in protein synthesis is crucial for understanding the functioning of living organisms and for the development of new medical treatments.

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