Multiple choice Which of the following is derived from the roots of plants of the madder genus ? Alizarin Red 2G Bismarck brown Y Alizarine Yellow R Reveal answer Fill a bubble to check yourself A Correct answer Explanation Alizarin or 1,2-dihydroxyanthraquinone is an organic compound that is historically important as a prominent dye, originally derived from the roots of plants of the madder genus.