A Researcher Has Developed Two Stains for Use with Seed

question 29

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 should 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.
• E) Insofar as the pollen grains are independent of the plant that produced them, they will not absorb either stain.

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Definitions:

Aging Process

The natural progression of physical, cognitive, and psychological changes in humans over time.

Recognize Material

involves the ability to identify and recall information that has been previously learned or experienced.

Learning

Attainment of fresh comprehension, know-how, practices, beliefs, or tastes via the routes of studying, experiencing, or being taught.

Seventies

The seventies often refer to the decade between 1970 and 1979, characterized by significant social, political, and cultural change.