The Figure Below Shows Results of Bristle Number in Drosophila

question 43

Multiple Choice

The figure below shows results of bristle number in Drosophila flies after 35 generations of artificial selection.This figure suggests that

• A)bristle number has evolved beyond the original range of phenotypic variation for this trait.
• B)after 35 generations of selection,populations no longer exhibit variation in bristle number.
• C)natural selection cannot lead to large phenotypic changes.
• D)at the end of the experiment,"high population" flies were unable to interbreed with "low population" flies.

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Definitions:

Functionalism

A theoretical framework in sociology and anthropology that views society as a complex system whose parts work together to promote solidarity and stability.

Nonroutine Collective Action

Unplanned, spontaneous group actions that emerge in response to an immediate situation or crisis.

Rationality

The characteristic of being rooted in or guided by reason or rationality.