A Consequence of Organelle Heredity Is That Sequence Changes in MtDNA

question 33

Multiple Choice

A consequence of organelle heredity is that sequence changes in mtDNA vary more than nuclear DNA in response to reduction in population size. Which of the following does this imply about human evolutionary history?

• A)Current human populations must have a much higher mutation rate than ancient populations.
• B)Mitochondrial variants in people descending from originally small populations show enough diversity to be used to construct an evolutionary tree.
• C)The original human population must have grown to be quite large before its members began migrating to other lands and other continents.
• D)Nuclear gene sequencing must be used to resolve the question of human ancestral origins.
• E)A single human population, living about 200,000 years ago, could not have given rise to all current human populations.

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Definitions:

Charles Handy

A respected British management thinker known for his theories on organizational culture and motivation.

Common Purpose

A shared vision or goal that unites members of a group, team, or community, driving collaborative efforts towards achieving that goal.

Organization

A systematic arrangement of people and resources working together to achieve specific goals.

Collection of People

An assembly or group of individuals brought together for a common purpose or function.