The term ‘ACE2’ is talked about in the context of

1. A. genes introduced in the genetically modified plants
2. B. development of India’s own satellite navigation system
3. C. radio collars for wildlife tracking
4. D. spread of viral diseases

Answer: D

Explanation

Option (d) is correct: On the surface of human cells is an enzyme called ACE2, which acts as the receptor that enables SARS-CoV2 to launch its attack. The virus’s spike protein binds to the receptor, then fuses with the cell surface, and releases its genetic material (RNA in the case of SARS-CoV2) into the cell. The coronavirus that causes SARS, called SARS-CoV, uses the same ACE2 receptor to invade a cell.