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.
Phototropism in plants
Herbivores must overcome the wide variety of physical and chemical defences evolved by plants.
Male and female plants
Plants
Gibberellin and germination, illustrated in a seed of barley (Hordeum vulgare).
Selected Narrow Sense Heritability (h2) Values for Animals and Plants