A Researcher Performs an Experiment on Fruit Flies to Monitor

question 21

Essay

A researcher performs an experiment on fruit flies to monitor the change in allele frequency of an allele called
A. She starts with 24 populations, each with an initial starting frequency for A of 0.5. Flies are maintained for ten generations by transferring the offspring from each generation to a new vial, where they produce the next generation. For half of the populations she randomly selects 20 flies to transfer, while for the other half she randomly selects 200 flies to transfer. After ten generations she collects the following allele frequency data:
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Treatment 1: 0.55, 0.6, 0.2, 0.9, 0.45, 0.35, 0.1, 0.65, 0.65. 0.55, 0.75, 0.35
Treatment 2: 0.85, 0.8, 0.75, 0.8, 0.75, 1.0, 0.8, 0.85, 0.9, 0.8, 0.85, 0.8
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What is a plausible explanation for the differences between the treatments? Please make sure to explain your logic.

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Definitions:

Hyperopic

A term describing a condition of the eye where distant objects can be seen clearly, while close objects appear blurred, also known as farsightedness.

Presbyopia

A condition in which the eye gradually loses the ability to focus on close objects, typically associated with aging.

Emmetropic

Emmetropic refers to the normal condition of the eye wherein light focuses directly on the retina, resulting in perfect vision without the need for corrective lenses.

Myopia

A vision condition where close objects appear clear but distant objects are blurry, due to the eye's shape causing light rays to focus in front of the retina.