THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Codons remain in the nucleus securing the genetic code and ensuring that protein synthesis will proceed uninterrupted.
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Codons leave the nucleus carrying the code for making proteins and go to the cells vacuole to store the genetic information.
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The codons found on mRNA are taken to the ribosome where the information is read and amino acids are fixed in a specific order creating a protein.
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Detailed explanation-1: -(KOH-don) A sequence of three consecutive nucleotides in a DNA or RNA molecule that codes for a specific amino acid. Certain codons signal the start or end of translation. These are called start or stop (or termination) codons.
Detailed explanation-2: -Three codons, UAA, UAG, and UGA, are known as stop codons as they stop the process of translation. If this is a mutation as a stop codon and its finishes prematurely it is called an amber codon. AUG is also known as a start codon, as it initiates the process of translation.
Detailed explanation-3: -Each three-letter sequence of mRNA nucleotides corresponds to a specific amino acid, or to a stop codon. UGA, UAA, and UAG are stop codons. AUG is the codon for methionine, and is also the start codon.
Detailed explanation-4: -The mRNA interacts with a specialized complex called a ribosome, which “reads” the sequence of mRNA nucleotides. Each sequence of three nucleotides, called a codon, usually codes for one particular amino acid. (Amino acids are the building blocks of proteins.)