Cell division is simpler in prokaryotes than eukaryotes because prokaryotic cells themselves are simpler. Prokaryotic cells have a single circular chromosome, no nucleus, and few other organelles. Eukaryotic cells, in contrast, have multiple chromosomes contained within a nucleus, and many other organelles.
That would be 0%. An organism with a genotype of (ss) can only produce the s allele within their gametes. So the probability of their gametes containing an s allele would be 100%, while the S allele would be 0%.
Red giant or red supergaint (its the same thing)