Which of the Following Is Most Likely to Have the Greatest

question 20

Multiple Choice

Which of the following is most likely to have the greatest influence over U.S.foreign policy?

• A) secretary of state
• B) the Central Intelligence Agency
• C) Director of National Intelligence
• D) the Joint Chiefs of Staff

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Definitions:

Paralogs

Genes within the same organism that have evolved by duplication and may have different functions.

Gene Family

A group of genes sharing a common origin that typically encode proteins with similar functions.

Molecular Clock

A method used to determine time based on base pair substitutions. Molecular clocks use the rates of molecular change to deduce the divergence time between lineages in a phylogeny, for example. They work best when they can be “calibrated” with other markers of time, such as fossils with known ages and placements.

Synapomorphy

A trait that is shared by two or more taxa and their most recent common ancestor, used to infer evolutionary relationships.