Genetics is the study of genes, genetic variation, and heredity in living organisms. It is generally considered a field of biology, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.

The father of genetics is Gregor Mendel, a late 19th-century scientist and Augustinian friar. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring. He observed that organisms (pea plants) inherit traits by way of discrete "units of inheritance". This term, still used today, is a somewhat ambiguous definition of what is referred to as a gene.

Trait inheritance and molecular inheritance mechanisms of genes are still primary principles of genetics in the 21st century, but modern genetics has expanded beyond inheritance to studying the function and behavior of genes. Gene structure and function, variation, and distribution are studied within the context of the cell, the organism (e.g. dominance), and within the context of a population. Genetics has given rise to a number of subfields, including epigenetics and population genetics. Organisms studied within the broad field span the domain of life, including bacteria, plants, animals, and humans.

Genetic processes work in combination with an organism's environment and experiences to influence development and behavior, often referred to as nature versus nurture. The intracellular or extracellular environment of a cell or organism may switch gene transcription on or off. A classic example is two seeds of genetically identical corn, one placed in a temperate climate and one in an arid climate. While the average height of the two corn stalks may be genetically determined to be equal, the one in the arid climate only grows to half the height of the one in the temperate climate due to lack of water and nutrients in its environment.

What are the answers to this following set of questions:

1. Who is the "father" of genetics?
2. What did he study?
3. In what organism?
4. Through what did he discover the plants inherited their traits?
5. A more precisely defined version of this is called what?
6. What field includes genetics?
7. Is it strictly contained within biology?
8. What is is strongly connected with?
9. Name one subfield of genetics.
10. What kinds of organisms are studied in genetics?
11. Can the work of genes be switched on and off?
12. By what?
1. Gregor Mendel
2. trait inheritance
3. pea plants
4. by way of discrete "units of inheritance"
5. a gene.
6. biology,
7. no
8. study of information systems.
9. Trait inheritance
10. bacteria, plants, animals, and humans
11. yes
12. The intracellular or extracellular environment of a cell