Gregor Mendel, an Austrian monk, is often known as the father of genetics. He studied the cross breeding of the traits in pea plants. Which statement best defines genetics (heredity)?
A. Passage of genetic introductions from one generation to the next generation.
B. Chromosomes that are found inside the chloroplast contain genetic material.
C. The percentage of genes that are expressed.
D. The ability to choose specific traits that are passed from parent to offspring.