Scientists Had Thought That Humans Had as Many as 100,000

question 70

Multiple Choice

Scientists had thought that humans had as many as 100,000 or more genes,but recent research indicates a figure of approximately:

• A)250.
• B)1,500.
• C)20,500.
• D)1,000,000.

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Definitions:

Thalamus

A major part of the brain's diencephalon, acting as a principal relay station for sensory information.

Optic Disc

The point in the eye where the optic nerve meets the retina, often referred to as the blind spot because it lacks photoreceptors.

Primary Visual Cortex

The region of the brain located in the occipital lobe that processes visual information.

Vision For Action

A theory in cognitive neuroscience which posits that visual processing in the brain is done for the purpose of performing actions, rather than for perception alone.