Based on the Information Below, Answer the Following Question(s), Assuming

question 32

Multiple Choice

Based on the information below, answer the following question(s) , assuming complete dominance.
"In humans, the ability to roll the tongue is a dominant trait; the inability to roll the tongue is a recessive trait."
-If two individuals heterozygous for this trait have a child, what is the chance that the child will not be able to roll his tongue?

• A) 0%
• B) 25%
• C) 50%
• D) 75%
• E) 100%

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Definitions:

Primary Immune Response

The initial reaction of the immune system when exposed to an antigen for the first time.

Memory Cells

A type of white blood cell that retains a memory of previously encountered pathogens and mounts a stronger and faster response upon reexposure.

Antigen

A substance that when introduced into the body, prompts the generation of an immune response by the production of antibodies.

Secondary Immune Response

The body's immune system's more rapid and intensified response to a pathogen it recognizes from a previous infection.