Question

which of the following is not true of a complex capsid?
○ is made of 20 subunits
○ found in bacteriophage
○ have multiple types of proteins
○ takes assymetrical shapes

Explanation:

1. Recall the characteristics of a complex capsid: Complex capsids (like in bacteriophages) have multiple protein types, asymmetric shapes, and are found in bacteriophages.
2. Analyze each option:

• "found in bacteriophage": True, bacteriophages have complex capsids.
• "have multiple types of proteins": True, complex capsids have multiple protein subunits.
• "takes asymmetrical shapes": True, complex capsids are asymmetric.
• "is made of 20 subunits": A capsid made of 20 subunits (icosahedral symmetry, with 20 triangular faces) is a simple icosahedral capsid, not a complex one. Complex capsids do not follow this simple 20 - subunit structure.

Answer:

A. is made of 20 subunits