DNA sequence – TAC GTA GTC ACC TAA TGG ATC…mRNA sequence – AUG CAU CAG UGG AUU ACC UAG…Amino acid sequence – met his gln trp ile thr stop how many codons are contained in mRNA that is produced by the DNA sequence?
To determine the number of codons contained in the mRNA sequence produced by the given DNA sequence, we need to understand how codons are formed
To determine the number of codons contained in the mRNA sequence produced by the given DNA sequence, we need to understand how codons are formed.
A codon is a sequence of three nucleotides (either DNA or RNA) that codes for a specific amino acid during protein synthesis. Each codon corresponds to a specific amino acid or a stop signal.
In this case, the DNA sequence is: TAC GTA GTC ACC TAA TGG ATC…
To find the mRNA sequence, we need to perform transcription, where RNA is synthesized based on the DNA template strand. During transcription, DNA’s thymine (T) is replaced by uracil (U) in RNA. Therefore, the mRNA sequence becomes: AUG CAU CAG UGG AUU ACC UAG…
Now, let’s count the number of codons in the mRNA sequence. Each codon is made up of 3 nucleotides, so we count the number of groups of 3 nucleotides in the sequence:
AUG CAU CAG UGG AUU ACC UAG…
There are 8 groups of 3 nucleotides, which corresponds to 8 codons.
Therefore, the mRNA sequence produced by the given DNA sequence contains 8 codons.
More Answers:
Analyzing the Impact of a DNA Substitution on Amino Acid Sequence: A Detailed ExaminationUnderstanding Silent Mutations: The DNA Point Mutation that Doesn’t Alter Amino Acid Sequence.
Understanding Translation: Determining Amino Acids in a Polypeptide from DNA/mRNA Sequence