Conservation of Amino Acid Sequence Among Distantly Related Groups of Organisms

question 53

Multiple Choice

Conservation of amino acid sequence among distantly related groups of organisms is suggestive of an_______ .

• A)lack of common ancestor
• B)important function for that sequence
• C)intrinsic resistance to mutations in that sequence
• D)lack of selective pressure on that sequence

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Definitions:

Learned Response

A reaction developed as a result of experience or practice, which differs from innate or reflexive responses not dependent on prior exposure.

Normal Vision

The standard state of visual acuity, typically defined as 20/20 vision, in which a person can see what an average individual is expected to see at 20 feet.

Happy

An emotional state characterized by feelings of joy, satisfaction, contentment, or positive well-being.

Ultimate Causes

Fundamental reasons behind biological or behavioral phenomena, often involving evolutionary explanations.