The seed coat would be the tricky outer layer of your seed and the radicle should penetrate this in order for germination to take place. You can see how both of these kinds of tomatoes have the very same cotyledons, but after their real leaves emerge, a single seedling has https://www.transplant-doctors.com/wall/blogs/6410/Seed-Germination-Process-A-Step-by-Step-Guide-to-Growing