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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True
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False
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Detailed explanation-1: -Transcription ends at a stop codon. In a particular gene, the nucleotides that encode the start codon are +21 through +24. The stop codon is found at nucleotides +557-560.
Detailed explanation-2: -While the start codon also codes for an amino acid called methionine, stop codon amino acids do not exist; their triplet nucleotide sequences do not encode part of a polypeptide chain but only act to end the transcription and translation processes.
Detailed explanation-3: -In molecular biology (specifically protein biosynthesis), a stop codon (or termination codon) is a codon (nucleotide triplet within messenger RNA) that signals the termination of the translation process of the current protein.
Detailed explanation-4: -Stop Codon A stop codon is a sequence of three nucleotides (a trinucleotide) in DNA or messenger RNA (mRNA) that signals a halt to protein synthesis in the cell. There are 64 different trinucleotide codons: 61 specify amino acids and 3 are stop codons (i.e., UAA, UAG and UGA).