Which of the Following Is a Defining Characteristic That All

question 14

Multiple Choice

Which of the following is a defining characteristic that all protocells had in common?

• A) the ability to synthesize enzymes
• B) a surrounding membrane or membrane-like structure
• C) RNA genes
• D) the ability to replicate RNA

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Definitions:

Hormones

Chemical substances produced in the body that regulate the activity of cells or organs, influencing growth, development, and mood.

Seroconversion

The process by which a person develops antibodies.

Opsonization

A process by which pathogens are marked for destruction by the immune system through the binding of antibodies or complement proteins.

Acquired Immunodeficiency Syndrome

A chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV) which damages the immune system.