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.
Alternate Birthstone. An alternate birthstone for December is the Turquoise. So named because it was initially brought to Europe by way of Turkey, this stone is one of the first gems to be used in jewelry. Turquoise was considered by ancients to be a sacred stone, protective against all manners of evil and ill health.