I was trying to tag my fiancee in a picture and as I clicked post, I was directed to a page on Instagram that told me to put in my phone number for a security verify. The only problem is... I don't have a cell phone.
Point mutations in the coding region of DNA can have one of three consequences: 1) No effect if the mutated codon still codes for the same amino acid. 2) It can result in the protein having one different amino acid. The effect on protein function can vary from no effect to devastating diseases such as cycstic fibrosis.
Briefly, the DNA in our cells is translated by cell machinery to make proteins. The sequence of amino acids in a protein determines its function. The DNA sequence of a gene determines the amino acid sequence of the resulting protein. Thus, any changes in DNA sequence can result in changes in protein function.