The Covington County, Alabama sales tax is 6.00% , consisting of 4.00% Alabama state sales tax and 2.00% Covington County local sales taxes.The local sales tax consists of a 2.00% county sales tax. The Covington County Sales Tax is collected by the merchant on all qualifying sales made within Covington County.
CASK-related intellectual disability, as its name suggests, is caused by mutations in the CASK gene. This gene provides instructions for making a protein called calcium/calmodulin-dependent serine protein kinase (CASK).
This image shows an example of missense mutation. One of the nucleotides (adenine) is replaced by another nucleotide (cytosine) in the DNA sequence. This results in an incorrect amino acid (proline) being incorporated into the protein sequence.In genetics, a missense mutation (a type of nonsynonymous substitution) is a point mutation in which a single nucleotide change results in a codon that codes for a different amino acid.hen an amino acid may be encoded by more than one codon (so-called degenerate coding) a mutation in a codon may not produce any change in translation; this would be a silent mutation (a type of synonymous substitution, which is not always silent) and not a missense mutation.