After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres?
1. anaphase
2. prophase
3. metaphase
4. telophase

4.Metaphase
All of the chromosomes are aligned midway between the spindle poles. A spindle is a dynamic network of microtubules that attaches to and moves chromosomes during nuclear division. Microtubules attach each chromatid to one of the spindle poles, and its sister to the opposite pole.

Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.