19. Which change to a DNA molecule would have the least effect on an organism? an addition to a base sequence at the beginning of a gene
O a substitution that creates a "stop" code in the middle of a gene
O a substitution in a base sequence that does not code for a protein
a deletion from a base sequence in the middle of a gene

According to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? view available hint(s) according to the valence shell electron pair repulsion (vsepr) theory, a molecule that has four electron groups around the central atom will exhibit what electron geometry? trigonal bipyramidal tetrahedral square planar determination of electron geometry requires information on whether the electron groups are lone pairs or bonding groups.