Answer: Carla has brown eyes
Explanation:
According to allele color concept ,brown color is supposed to be dominant color and blue is supposed to be recessive trait color for eyes.Brown color has the gene or allele tendency to overcome other color of eye and mask its own feature majorly over eye color.
According to the question, it can be depicted that Carla will tends to have brown eyes as she attains blue eye color recessive trait and dominating trait of brown eye color from her parents.Brown allele being dominant will override blue color trait.
