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:

Hand Grip

A measure of hand and forearm strength, assessed using a device that an individual squeezes with maximum effort.

Arm Pull

A reflex in infants when an arm is pulled and the infant's hand automatically grasps the object or person as a response.

Resting Heart Rate

The number of heartbeats per minute when an individual is at rest, used as an indicator of cardiovascular fitness and overall health.

Adolescent Growth Spurt

a rapid increase in an individual's height and weight during puberty, resulting from accelerated bone growth.