What is the question you have?
D) Long chains of amino acids used for building, repair, and maintenance
Proteins are made up of amino acids, and they are used to create substances (like hair, nails, etc.)
Hope this helps!!
<span>The purpose of the Human genome Project was to find the nucleotide sequence of the human genome and to also map the locations of where they are on the chromosomes. They accomplished finding how gene expressions is controlled as well as predicting disorders and now they have also developed gene therapy.</span>
