When changes occur in a dna sequence, produced from the dna may not function correctly, and a disease may result. a. proteins, genetic b. carbohydrates, contagious c. carbohydrates, genetic d. proteins, contagious

DNA is transcribed to RNA, which is translated into proteins. So DNA is in charge of making proteins (this narrows it down to either A or D). When there is a change in a person's genetic information, it will not result in a contagious disease. Those are usually caused by bacteria or viruses. A change in DNA could potentially result in a genetic disease. Therefore, answer A is correct. Hope this helps! :)