A two-trait Punnett Square has 16 boxes. The probability of a cross producing a genotype in any box is 1 in 16. If the same genotype is present in two boxes, its probability of occurring doubles to 1/8 (1/16 + 1/16).
November born individuals, are blessed with two ruling Birthstones, the revered Topaz and the gentle, healing Citrine. Topaz is a gemstone exhibiting an array of spectacular colors. The stone was believed to be symbolic of the Egyptian Sun God Ra, with its brilliant golden glow and fiery intensity.
Citrine, derived from the French word for lemon, in all of its glorious golden and yellow colors, is the most affordable of all the earth-toned gemstones and is the alternate birthstone for November. Ametrine is as affordable as regular amethyst or citrine, and you can have both gemstones for the price of one.