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

What organelle other than the nucleus houses dna in a eukaryotic cell?

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?