Question: Using the image to the right and based on the reading on the application tab, how can you tell if a marker is homozygous or heterozygous? (In other words, how many bands will appear on the gel if it is homozygous vs. heterozygous?) Homozygous: A person whose got two of the same alleles on their chromosome. Heterozygous: A person who has two different alleles on their chromosome. Need Assignment Help?