A specific virus is known to infect only human respiratory cells and not skin cells. What biological factor primarily determines this specific tissue tropism?
Q1. A specific virus is known to infect only human respiratory cells and not skin cells. What biological factor primarily determines this specific tissue tropism?
Answer: Presence of complementary surface receptors
Explanation: Host range and tissue tropism are determined by the compatibility between viral surface proteins and host cell receptors. Intracellular pH is not the primary determinant.