A gene is a sequence of DNA nucleotide bases that codes for a single protein. Approximately how many nucleotide bases would be required to code for a protein chain that is 100 amino acids long?

Answer:300

Explanation:

A codon specify a particular amino acid. It is been read in three base pair or nucleotide. Cells are able to decode mRNA by reading this codon that specify a particular amino acids. We have the start codon (AUG specifying methionine) and stop codon which are three UAA, UGA, UAG

The start codon specify when to start translation and the stop codon specific when translation should stop.

Since a codon contains is a group of 3 nucleotide Bases then 100 amino acid will contain 300 nucleotide bases.