If the genes for the two traits are on the same chromosome, alleles for each trait will always appear in the same combinations (ignoring recombination). With one row or column for each allele combination, the total number of boxes in a Punnett Square equals the number of rows times the number of columns.
November Birthstone Color. The November birthstone color is usually light to dark yellow, however, topaz, the official November birthstone comes in a range of great colors such as several shades of yellow, pale green, blue, red, pink, black, and brown. Pure topaz is actually a colorless stone. The red and pink topaz gets their color from chromium.
Unique Birthstone Jewelry. Yellow Topaz is the modern November birthstone and blue topaz is the Modern December birthstone. Topaz is the accepted gem for the fourth, 19th and 23rd wedding anniversaries. See other December and November birth stones: Traditional, Contemporary, Mystical, Ancient, Zodiac and Star signs. See more topaz jewelry.