What Information Can Be Gained by Comparing the Sequences of Proteins

question 96

Multiple Choice

What information can be gained by comparing the sequences of proteins that have the same or similar function in different species?

• A)To determine evolutionary relationships and relatedness of species.
• B)To determine sequences that are conserved among species since they are likely to be important to the function and stability of the proteins.
• C)To locate highly variable residues which contribute little to the structure and function of the protein.
• D)All of the above.

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Definitions:

Hybrid Inviability

A postzygotic barrier where offspring resulting from the mating of two different species fail to survive to reproductive maturity.

Mechanical Isolation

A form of reproductive isolation where two species are prevented from interbreeding due to physical incompatibilities that prevent successful mating or fertilization.

Magic Traits

Specific traits in evolutionary biology that influence both mate choice and survival, facilitating speciation.

Genome

The complete set of genetic material, including all of the genes and their sequencing information, present in an organism or a cell.