Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations (beneficial features)
During C. M phase , this would most likely occur because during Mitosis it is the physical separation of DNA , where chromatids are being split in half and so it might be possible that a chromatid might not have been split in half perfectly, resulting in genetic disorders.
This statement is correct-
decreased variation in tail feather color because no form of the trait is advantageous
