Researchers Are Studying Mechanisms of Human Infection by Animal Viruses

question 326

Multiple Choice

Researchers are studying mechanisms of human infection by animal viruses.  The investigators induce random mutations in the genome of an avian influenza virus that is unable to infect humans but is structurally similar to human influenza A virus.  A mutated isolate is found to be able to infect human upper respiratory tract epithelial cells.  Alteration in which of the following viral components most likely enabled this novel strain to cause cross-species infection?

• A)Antigenic glycoprotein
• B)Lipid bilayer envelope
• C)mRNA endonuclease
• D)Nucleocapsid protein
• E)RNA polymerase

---

Definitions:

Bottom-Line Results

The final outcome or net income of a business's operations, indicating the effectiveness of financial management.

Four Levels of Approach

Refers to a structured framework used to tackle problems or projects by addressing them at different layers or stages for thorough analysis and solution development.

Autocratic Leader

A leader who makes decisions unilaterally without consulting their team members, typically leading with a high degree of control.

Growth of People

The development or improvement of individuals in various aspects such as skills, knowledge, personal attributes, and overall capability, often a goal in educational and professional contexts.