Read carefully the sequence of codons in the mRNA unit and answer the questions. (a) What change is needed in the first codon to start the translation process? (b) If translation starts by that change, till which codon it can continuous? Why?
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Solution
a) AUG codon is the start codon for the translation process.
b) If translation starts from the start codon it will continue till the codon UGA.
UAG, UAA and UGA are stop codons in mRNA that mark the end of translation.