Dolly the sheep, the first mammal cloned from a somatic (body) cell, came into the world innocent as a lamb. However, soon after the announcement of her birth in February 1997 (Wilmut et al., 1997) she caused panic and controversy. An important, and for many people troubling question arose: if the cloning of sheep is possible, will scientists soon start cloning humans as well; and if they did, would this be wrong or unwise? For most people, Dolly was really a wolf in sheepâs clothing.
According to the University of Vermont Extension, the reasons plants have different colors is because of pigments within the plant. A variety of pigments are held within different plants, other factors regarding plant color include the amount of sugar and light a plant receives.
Plants use light in the 450 and 700 nm range. Meaning the plants like indigo-blue and orange-red light. Certain colors in light rays are important for proper plant growth. Leaves reflect and derive little energy from many of the yellow and green rays of the visible spectrum. Yet the red and blue parts of the light spectrum are the most important energy sources for plants, and plants require more rays from the red range than from the blue.