In Drosophila, the Genes for Body Coloration and Eye Size

question 103

Short Answer

In Drosophila, the genes for body coloration and eye size are on different chromosomes.Normal-colored bodies are dominant to ebony-colored (very dark) bodies, and normal-sized eyes are dominant to eyelessness.Line A is true breeding for normal body color and normal eyes, whereas line B is true breeding for ebony bodies and eyelessness.If 400 F₂ flies were produced, _______ would be expected to have both normal body color and normal eyes.

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Definitions:

Specialization of Labor

The division of labor where individuals or groups focus on specific tasks or jobs, increasing efficiency and productivity.

Diminishing Marginal Returns

Diminishing marginal returns occur when the increase in output from adding an additional unit of input decreases, holding all other inputs constant.

Long-run Average Total Cost

The average cost per unit of output when all inputs, including capital, can be varied, and economies of scale are realized fully.

Unit Costs

The cost incurred by a business to produce, store, and sell one unit of a particular product or service.