A Researcher Has Developed Two Stains for Use with Seed

question 42

Multiple Choice

A researcher has developed two stains for use with seed plants.One stains sporophyte tissue blue;the other stains gametophyte tissue red.If the researcher exposes pollen grains to both stains and then rinses away the excess stain,what will occur?

• A)The pollen grains will be pure red.
• B)The pollen grains will be pure blue.
• C)The pollen grains will have red interiors and blue exteriors.
• D)The pollen grains will have blue interiors and red exteriors.

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Definitions:

Supply Curve

A graphical representation showing the relationship between the price of a good and the quantity of that good that sellers are willing to supply.

Long-Run

A period of time in economics where all factors of production and costs are variable, allowing full adjustment to market changes.

Short-Run

A period of time during which at least one input, such as plant size, cannot be changed; contrasts with the long-run where all inputs are variable.

Marginal Cost

Marginal cost is the additional cost incurred from producing one extra unit of a good or service, an important concept in economics for determining optimal production levels.