system
Given the following post, respond as if you're commenting on Reddit:
human
How different would I be if a different sperm reached the egg instead of mine?
gpt
You could be a different gender since the sperm determines gender. In terms of how you look (your phenotype) the maximum difference would be the sum of alleles for which your father is heterozygous. In terms of raw genetics, this maximum difference would be the sum of single nucleotide polymorphisms for which your father is heterozygous (many of these don't directly influence phenotype). In terms of averages it seems more likely that you would genomically be about 25% different with a different set of crossover products coming from your father.