Choose a plant or animal and find out how it has been improved because of the study of genetics. The following examples are given, but you may select some other topic if you like. Be sure that you have the topic and the method (written or oral) of reporting approved before you do your research. If you choose written, your report should be 1000 words in length.

1. Do some research into thornless varieties of plants.
a. What plants are available which do not have thorns?
b. Is thornlessness a mutation?
c. When and where was the possibility of growing thornless varieties of plants discovered?
d. How do these varieties compare with the variety that has thorns?
e. Consult seed catalogs, gardening books, and magazines in the library.
2. Do some research into the new variety of pumpkins that do not have hulls on their seeds.
a. Is the flavor of the new variety as good as the flavor of the older varieties, or is the new variety raised only to have seeds without hulls?
b. How are the seeds prepared?
c. Is the pumpkin seed a good source of protein?
d. Consult seed catalogs, gardening books, and gardening magazines.
3. Study the potato famine in Ireland.
a. Study how the use of some modern types of potatoes can help to overcome such famines.
b. Give some examples of potatoes which are hardy against disease.
c. Study the careful breeding experiments that resulted in disease resistant potatoes.
4. Do some research to find out about the new breeds of cattle that provide much better beef than the older breeds.
a. Consult a genetics book from the library to determine the names of such cattle.
5. You may want to investigate some of the diseases which are inherited.
a. Consult a genetics textbook from the library.
b. You may also need to look up some of these in a medical textbook or the Journal of Heredity.

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Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

Though heredity had been observed for millennia, Gregor Mendel, a scientist and Augustinian friar working in the 19th century, was the first to study genetics scientifically. Mendel studied "trait inheritance", patterns in the way traits are handed down from parents to offspring. He observed that organisms  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, and within the context of a population. Genetics has given rise to a number of subfields, including molecular genetics, epigenetics and population genetics. Organisms studied within the broad field span the domains of life .

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 living 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.

Etymology  

The word genetics stems from the ancient Greek ' meaning "genitive"/"generative", which in turn derives from ' meaning "origin".

History  

The observation that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. The modern science of genetics, seeking to understand this process, began with the work of the Augustinian friar Gregor Mendel in the mid-19th century.

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