In the Section "Investigating Life: Clues to the Origin of Language",what

question 76

Multiple Choice

In the section "Investigating Life: Clues to the Origin of Language",what did scientists discover was the primary cause for language disorder in the affected family?

• A)The cause was one mutation in a single gene on one chromosome.
• B)The disorder was not inherited but related to diet.
• C)Affected family members were lacking vocal chords.
• D)The cause was multiple mutations in multiple genes on one chromosome.
• E)The cause was multiple mutations in multiple genes on many chromosomes.

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Definitions:

Gains the Ability to See

The development or restoration of the capacity for vision or sight.

Lightness Constancy

The visual perception phenomenon whereby the perceived color or brightness of objects remains constant despite changes in illumination.

Relative Luminance

The brightness of an object compared to the brightness of a similarly illuminated object that appears to be white or highly reflective.

Perceptual Set

A mental predisposition or readiness to perceive certain aspects of available sensory data and ignore others.