Question

Given: dna codon chart, DNA sequence.DNA sequence given is: 3’ TAC CCC GAT AAA ATA CAT TTA GGA TCG CGA TGG TAT 5’How do you transcribe the DNA sequence into mRNA?And can you underline or highlight on the sequence the codons for Proline and Tyrosineand label which is which? Thanks

Answer 1

Step 1:

The process of DNA transcription occurs from the 5' to 3' being the DNA sequence in the correct order for transcription as follow:

5' TAT GGT AGC GCT AGG ATT TAC ATA AAA TAG CCC CAT 3'

Step 2:

Resulting in the mRNA:

5' AUA CCA UCG CGA UCC UAA AUG UAU UUU AUC GGG GUA 3'

- Being the nucleotide thymine replaced by uracil in the formation of the RNA strand.

Step 3:

The codons sequence that form proline and tyrosine are:

Proline: CCA;

Tyrosine: UAU.