Many inherited diseases can be caused by mutations in the promoter region of a gene, even though there is no mutation in the transcribed region of the gene. If the sequence of a promoter region is altered (no longer ATATT), how would gene expression be affected:

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers