Question

A particular triplet of bases in the coding sequence of dna is aaa. The anticodon on the trna that binds the mrna codon is

Answer 1

From DNA to RNA:

A--> U

mrna- uuu

From mRNA to tRNA

U-->A

trna- aaa

Answer 2

The sequence of RnaT is AAA.

Step-by-step explanation:

It is important to understand that in the process of DNA transcription, we obtain the pre mRNA (from the template tape), which contains coding (exon) and non-coding (intron) nucleotide sequences. After processing this pre-mRNA (splicing), the mRNA itself is obtained, whose sequences are only exons. Every three nucleotides then, a codon is determined, which will correspond to one amino acid (genetic code). The ribosomes, responsible for the translation, in their binding sites, will allow the coupling of tRNA, which brings in its structure, a complementary region that recognizes the codon, called anticodon. Each tRNA corresponds to a different amino acid, and during the translation process, the displacement of the ribosome over the mRNA strand will determine the sequential allocation of tRNAs with codon complementary anticodons, and finally, the formation of peptides that will produce the product. of DNA expression. So in the case of this question, the sequence of RnaT is AAA.