Studies of the Structure of Proteins Such as Cytochrome C

question 128

Multiple Choice

Studies of the structure of proteins such as cytochrome c and lysozyme in different species have shown that

• A) the rate of evolution of particular proteins is often relatively constant over time.
• B) many nucleotide substitutions result either in no change in the amino acid sequence of the protein or in a change to a functionally equivalent amino acid.
• C) there are fewer differences in the amino acid sequences of proteins whose organismal sources were closely related than in those whose sources were distantly related.
• D) functionally important regions of a protein can be discovered by identifying the regions with the most amino acid substitutions.
• E) All of the above

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Definitions:

Technological Advance

The process of developing new technologies or improving existing ones, leading to better products, processes, or services.

Variable Resources

Inputs used in production that can be adjusted in the short term to meet changes in output levels, such as labor and raw materials.

AVC Curve

Represents the average variable cost of production plotted against the quantity of output, showing how variable costs per unit change with changes in output.

MC Curve

Short for Marginal Cost Curve, it represents the change in total cost that arises when the quantity produced is incremented by one unit.