The section of a chromosome that contains instructions for building proteins is the genes.
What carries the instructions for building proteins?
Messenger RNA (mRNA) incorporates the instructions for making proteins. Like DNA, proteins are polymers: lengthy chains assembled from prefab molecular units, which, withinside the case of proteins, are amino acids. A big cellular machine* known as the ribosome interprets the mRNA code and assembles the proteins.
Genes are made from DNA. Some genes act as instructions to make molecules known as proteins. However, many genes do now no longer code for proteins. In humans, genes range in length from some hundred DNA bases to extra than 2 million bases.
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