Which type of macromolecule is made up of subunits that are called amino acids? carbohydrate lipid nucleic acid protein

Option). protein.

Explanation:

Proteins are macromolecules, made by polymerization of amino acids. Hence, amino acids are known as building blocks of the proteins. During protein synthesis, amino acids join together with the help of peptide bond to form polypeptide chains. These polypeptide chains arrange themselves and form proteins.

Examples of proteins are collagen, enzymes, silk, and hemoglobin.

Thus, the correct answer is option). protein.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).