Close up of a blue human iris. Eye color is a polygenic phenotypic character determined by two distinct factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
A simple Caesar salad. A Caesar salad is a salad of romaine lettuce and croutons dressed with parmesan cheese, lemon juice, olive oil, egg, Worcestershire sauce, anchovies, garlic, and black pepper. It is often prepared tableside. 1 History.
To the salad you can add slivered red peppers, half-moons of cucumber, toasted pine nuts, halved grape tomatoes, soft herbs like parsley or mint â or nothing at all. 1  Photo. 2  The shallots will continue to soften and sweeten in the vinegar for as long as you keep the dressing. Credit Karsten Moran for The New York Times.