Homologous Chromosomes and Sister Chromatids

Homologous Chromosomes and Sister Chromatids (HC and SC): Clearly distinguish between HC and SC pairs. Your answer should include the following: a clear distinction between ‘chromatin’ and ‘chromosome’, and how this difference affects gene expression; simple line diagrams to illustrate the difference between non-replicated and replicated DNA inchromatin and chromosome forms; afull description of both HC and SC with a labeled diagram that includes gene/allele sequences for a heterozygote and ‘m’ or ‘p’ labels to indicate parental origin; a definition of diploid and haploid cells in terms of HC content; an explanation of the stage of the organism’s life cycle at which the HCfirst come into existence(I am NOT asking for when they are first visible as a pairduring the cell cycle),and the stage of the cell cycle at which SCform (again, not when they are first visible); a description of the differences between what happens to HC and SC during mitosis and meiosis I and meiosis II (please do not diagram out each stage, just describe the 2-3 key differences between the events of mitosis and meiosis I & II that explain the different outcomes); and an explanation of how these differences relate to the different functions of mitosis and meiosis in the organism.

A chromatin is DNA combined with proteins that is found in the nucleus of eukaryotic cell, It is partially compacted. A chromosome is a fully compacted chromatin that is visible in cells during nuclear division. the degree to which chromatin is compacted greaty affects the accessbility of chromatin to the cell because compaton is necessary in order to fit a very large amount of DNA into a much smaller nucleus.
Homologous chromosomes are two chromosomes with the same length, centromere position and same sequence of genes because they are the same chromosome type. Not same alleles because one maternal and one paternal, they are never attached by the centromere and appear in metaphase, so they are replicated.