Your genes contain the instructions inside of chromosomal dna that tell your cells to make the molecules called as proteins. Proteins are perform the various functions in your body to keep you healthy.
Each gene has carries instructions that determine that your features, such as eye colour, the hair colour and the height. There are mainly different versions of the genes for each of the feature.
At the functional level, genes or the DNA segments are having instruction manuals that the cells read, understand, and to interpret throughout their life. These genes are also passed on during fertilization. This means that the child was also receives a copy of its mother's genes and the copy of its father's genes
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