A seedling grown in the dark is likely to be etiolated. Etiolation is a term used to describe the abnormal growth of a plant in darkness or low light conditions. When a plant is grown in the dark, it elongates its stem and produces small leaves to try and reach for light. This results in a tall, spindly plant that appears weak and fragile. This is because the plant is using all its energy to grow upwards to get more light, rather than developing a sturdy stem and strong leaves. Therefore, a seedling grown in the dark is likely to be etiolated.