Homework SourseHow many nucleotides make up the actual coding region from t
How many nucleotides make up the actual coding region (from the first letter of the start codon to the last letter of the stop codon)? How many amino acids make up the human -globin protein?
How many nucleotides make up the actual coding region (from the first letter of the start codon to the last letter of the stop codon)? How many amino acids make up the human -globin protein?
Solution
There are four nucleotides in DNA that control the 20 amino acid present in protein. one amino acid in polypeptide product is specified by three nucleotides in mRNA. specific codons are used to start or stop polypeptide chain. total 64 codons are present. in eukaryotes AUG codon is initiation codon; UAA, UGA,UAG as stop codon.
Globinprotein are made of amino acids arranged in alpha helix structure. two common globin hemoglobin contain two alpha and two beta chain, alpha is of 141 amino acids and beta is of146 amino acid.
Myoglobin have single 153 amino acid polypeptide chain.
