1.Dr. He Jiankui used ""gene surgery"" to create twin girls lacking ""the gateway through which HIV enters the cell."" What gene did he edit? What is the function of this gene? What is a potential side effect that may occur from editing this gene in these children (3 pts)?

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.