Answer:
Sister chromatid is the 2 part of the same chromosome. Joined together with centromere They are the copy of one another.
for example: Allele for black hair, allele for black hair (exactly same)
Homologous chromosome is the 2 corresponding chromosome from different parent that may having different alleles.
For example: Allele for black hair, Allele for blue hair. (both are for hair, but are slightly different)
Brainliest please~
