Concept:When two different parent plants of the same species are crossed, their offspring form the
F1 generation.
Explanation:In the diagram, plant A and plant B are separate parents belonging to the same species.
The male gamete from one plant fuses with the female gamete of the other plant.
Since the gametes come from two different plants, this type of mating is called cross fertilization.
Self fertilization would involve the same flower or plant acting as both male and female parent.
Out-breeding refers to mating between unrelated individuals of the same breed, not simply two different plants in this type of cross.
A test cross is a breeding between an individual of unknown genotype and a homozygous recessive individual, which is not shown here.
Thus, only option B correctly describes the process that produced the
F1 generation.
Answer:B. cross fertilization
