The melanin gene would turned on more in the summer months because of its function, as it protects us from UV light damage caused by the sun. Summer is the most sunny season of the year so the melanin gene need to 'work' more than usually to protect us. When the sun shines on our skin, it destroys the melanin as well but since our skin is alive, it can respond to the sun's damage by making more melanin.So this means that it would be more turned on. Hope this helps
