At which phase of mitosis do the sister chromatids become daughter chromosomes?

metaphase
anaphase
cytokinesis
prophase
prometaphase

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes