Thanks! No offense about your albino theory, but that is not the case. I saw the albino genetic during the early stages of veg when she was sitting under a florescent bulb and only a few inches tall. I also did plenty of research about this issue and this can happen to many other plants besides Cannabis. I have a close relative who works as a professional in the business of large scale crop production and he sees this all of the time in other plant structures when he inspects the fields for any problems.
Also, this cola is sitting/growing below the other main towers and is much further from the lights. These are only 150 Watt HPS lights, so I am able to keep my plants closer than I would with other high wattage lamps. I also keep accurate records of temps and plant responses from my many other previous grows, and I can safely keep my upper tops 5-6 inches from the lights without any trouble.
Now, if you were using a 500 watt lamp with poor ventilation, there might be some problems similar to what I'm dealing with, but this cola is healthy and vibrant, and the yellow leaves are keeping the yellow within the bud structure. A very cool thing to see! Look it up online and you will discover how prominent this issue really is. I was surprised! I have grown numerous strains, and this one is the first!