<span>Group A beta-hemolytic streptococcal causes rheumatic carditis. The most common age group for this inflammation are children 5 through 15 years old. Symptoms include chest pain, swelling of the ankles, a fever, joint pain and a sore throat. People with this inflammation should use antibiotics to cure it.</span>
Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explanation:
I think the answer is D, because the DNA wraps around proteins called histones to form chromatid.