I'm having trouble on this too :(
<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>
<span>1. Cytoplasm. Cytoplasm is where its organelles are suspended.</span>
<span>2. Ribosomes. These ribosomes facilitate in manufacturing the cell’s proteins used in many cellular activities.</span>
<span><span>3. </span>Plasmid. It is a tiny DNA molecule.</span>
<span>4. Nucleoid. The genophore of a prokaryotic cell where its genetical material are found.</span>
Prokaryotic cells have: <span><span>1. </span>Capsules.</span>
<span><span>2. </span>Flagellum. A tail</span>
<span><span>3. </span>Pili, a hair-like structure on its surface.</span>
Answer:
option A:The kinase is active only when Tyr527 is dephosphorylated and Tyr416 is phosphorylated.
Explanation: