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:

Accidental Injuries

Bodily harm resulting from unexpected events or accidents, not intentionally self-inflicted.

Somatosensory Cortex

The part of the brain that receives and processes sensory input from the body.

Brain Structure

The physical organization and arrangement of different parts of the brain, including its cells and connections, which underpin its functions.

Skin's Surface

The outermost layer of the skin that provides protection against pathogens, UV light, and water loss.