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Question
Biology
Posted 5 months ago
Assuming the three base DNA sequence below is from the coding strand, what amino acid is encoded by the sequence after transcription and translation? 5' - TGG-3'
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Answer from Sia
Posted 5 months ago
Answer
The amino acid encoded by the DNA sequence 5' - TGG - 3' after transcription and translation is Tryptophan (Trp).
Solution
a
Transcription of DNA to mRNA: The DNA sequence 5' - TGG - 3' from the coding strand is used as a template to create the complementary mRNA sequence. Since the coding strand is the same sequence as the mRNA (except that in RNA, thymine (T) is replaced with uracil (U)), the mRNA sequence will be 5' - UGG - 3'
b
Translation of mRNA to amino acid: The mRNA sequence is then translated into an amino acid sequence using the genetic code. The codon UGG codes for the amino acid Tryptophan (Trp)
Key Concept
The genetic code is used to translate a sequence of nucleotides in mRNA into an amino acid sequence.
Explanation
The DNA sequence from the coding strand is transcribed into mRNA, which is then translated into an amino acid sequence. The codon UGG in mRNA corresponds to the amino acid Tryptophan (Trp) according to the genetic code.
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