The Addams Family Has an Autosomal Dominant Condition in Which

question 26

Multiple Choice

The Addams family has an autosomal dominant condition in which webbing attaches the second toe to the third toe and the second toe is longer than the big toe.Only some of the Addams' who inherit the mutant allele have a second toe longer than the big toe.In addition,the extent of webbing varies.This phenotype is

• A) both inherited and non-inherited.
• B) dominant and recessive.
• C) variably expressive and incompletely penetrant.
• D) invariably expressive and completely penetrant.
• E) genetically heterogeneic and a phenocopy.

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Definitions:

Blindsight

A phenomenon in which people who are perceptually blind in a certain area of their visual field demonstrate some response to visual stimuli in that area without consciously perceiving them.

Selective Attention

The process by which one focuses on one input or task while ignoring other stimuli or information.

Inattentional Blindness

A psychological lack of attention that is not associated with any vision defects or deficits, where an individual fails to perceive an unexpected stimulus that is in plain sight when other attention-demanding tasks are being performed.

Daydreaming

A mild, self-generated form of detachment from immediate surroundings, characterized by a person's drift of attention away from the task at hand.