About blind seedlings.
https://www.google.com/search?q=Blin...&bih=815&dpr=1
Hope the above helps.
Yes, I've seen them from time to time, they have just a green knob between two leaves at the top. Usually nothing happens and that's it. But rarely there will be two sprouts that come from that green knob and one or both may go on to form a branch that has blossoms that can lead to fruits.
Usually when I see that initial green knob I pull it since the seedling can stay that way forever.And usually I have more than one seedling of that variety that is just fine.
Carolyn