How could humans have evolved from an apelike ancestor?
You’re only considering point mutations to genes where a single nucleotide has changed. There are many other ways of generating genetic differences: gene or chromosomal duplications, inversions, deletions, translocations, viral insertions, transposons, etc. and then subsequent point mutations within this variation. For example a duplicated gene in one individual may not even be expressed but it will add hundreds or even thousands of base-pair differences. If this duplicate gene in later generations changes at a few points and produces a gene product of evolutionary importance, it may become fixed within a population. A similar scenario plays out in populations with more extensive genetic mutations involving whole chromosomes. These genetic changes occur to every lineage, so humans have branched in one evolutionary direction and are accumulating genetic changes, and our hominid ancestors branched in another direction accumulating their own differences.
