Complete the genetic information (DNA base pairs, t-RNA and mRNA nucleotide base
ID: 202932 • Letter: C
Question
Complete the genetic information (DNA base pairs, t-RNA and mRNA nucleotide bases, and the amino acids this gene codes for, in the following
DNA strand1 : ATG _____ _____ _____ _____ _____ CGC
DNA strand 2 : *_____ GCC _____ _____ _____ AGT _____
mRNA : _____ _____ AUA _____ UUU _____ _____
tRNA : _____ _____ _____ UAC _____ _____ _____
Amino acids : ______ ______ _____ _____ ______ ______ ______
(Remember which type of RNA actually carries the CODE as codons!)
* this is the DNA "sense strand" that will be transcribed to mRNA
Explanation / Answer
DNA strand1 : ATG CGG ATA GTA TTT TCA CGC
DNA strand 2 : *TAC GCC TAT CAT AAA AGT GCG
mRNA : AUG CGG AUA GUA UUU UCA CGC
tRNA : CAU CCG UAU UAC AAA UGA GCG
Amino acids : MET ARG ILE VAL PHE SER ARG
Explanation: DNA strands are complementary to each other and follow the watson and crick base pairing (A-T and G-C) and mRNA is complemetary to sense strand ie transcribed to mRNA but it contains Uracil in place of thymine. tRNA sequence complementary to codon present in mRNA but in reverse order and amino acid sequence to be determined by using the genetic dictionary respective to type of code.