An Example of a Pathogen That Undergoes Rapid Changes Resulting

question 43

Multiple Choice

An example of a pathogen that undergoes rapid changes resulting in antigenic variation is

• A) the influenza virus, which expresses alternative envelope proteins.
• B) the strep bacteria, which can be communicated from patient to patient with high efficiency.
• C) human papilloma virus, which can remain latent for several years.
• D) the causative agent of the autoimmune disease known as rheumatoid arthritis.
• E) multiple sclerosis, which attacks the myelinated cells of the nervous system.

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Definitions:

Gender Schemas

Cognitive structures that dictate the understanding and perception of gender roles and identities.

Fraternal Twin

Twins that result from the fertilization of two different eggs by two different sperm, genetically similar as ordinary siblings.

Primary Sex Characteristics

Are the physical features that are present at birth and are directly involved in human reproduction.

Conception

The moment when a sperm fertilizes an egg, leading to the beginning of pregnancy.