Q15.101P - Chemistry: Molecular Nature Of Matter And Change

Question

Write the base sequence of the DNA template from which this RNA sequence was derived: GUAUCAAUGAACUUG. How many amino acids are coded for in this sequence?

Step-by-Step Solution

Answer

The base sequence is as follows;

 Val-Ser-Met-Asn-Leu.

Step 1: RNA and amino acid

There are three types of RNA these are messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA). All three types of RNA are involved in protein synthesis.

Amino acids in the human body are used for making protein.

Step 2: Base sequence in amino acid

The sequence of three bases in RNA strand codes for the alpha-amino acids. We have given the following sequence of bases;

GUA-UCA-AUG-AAC-UUG

We know that, GUA codes for valine, UCA for serine, AUG for methionine, AAC for asn, and UUG for Leu.

Therefore the base sequence is as follows;

Val-Ser-Met-Asn-Leu.