Final answer:
Sister chromatids carry identical genetic information (same genes and same alleles).
Step-by-step explanation:
Sister chromatids carry identical genetic information (same genes and same alleles). During meiosis, homologous chromosomes replicate and synapse, leading to the exchange of genetic material through a process called crossing over. This results in recombination of alleles, causing maternal and paternal alleles to be combined onto the same chromosome. As a result, the sister chromatids of a chromosome carry the same genes and alleles.