A Population of Mice Has Been Monitored for Change Over

question 27

Multiple Choice

A population of mice has been monitored for change over several generations.Following are five different bones and the changes to their means and extents of variation. Tibia: Mean increased 0.14 units; variation decreased.
Femur: Mean increased 0.08 units; variation increased.
Ulna: Mean did not change; variation increased.
Clavicle: Mean did not change; variation decreased.
Radius: Mean decreased 0.12 units; variation decreased.
Which is most likely to be under stabilizing selection?

• A) Tibia
• B) Femur
• C) Ulna
• D) Clavicle
• E) Radius

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Definitions:

Amino Acid

Organic compounds that serve as the building blocks of proteins, necessary for various bodily functions and processes.

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A genetic condition caused by abnormalities in the number or structure of chromosomes, often leading to developmental issues or health problems.

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A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by physical growth delays, characteristic facial features, and intellectual disability.

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