I believe it is called a strike-slip
The answer would be the last one because a deletion changes every codon configuration that follows it and thus changes the amino acid that codes for that codon
The answer for this question would be the second option. Genomic studies cover the analysis of the changes of genome by scanning the markers across complete sets of DNA. Based on these studies, the change in gene sequences happen that resulted to a change in the way that the brain interprets speech in between 4 and 9 million years ago.