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Genetics Pierce 4e
Genetics Chpt 1 Introduction to genetics
Question | Answer |
---|---|
Genome | Complete set of genetic instructions for an organism |
Transmission genetics | Field of genetics that encompasses the basic principles of genetics and how traits are inherited |
Molecular genetics | Study of the chemical nature of genetic information and how it is encoded, replicated, and expressed. |
Population genetics | Study of the genetic composition of populations (groups of members of the same species) and how a population's collective group of genes changes with the passage of time |
Model genetic organism | An organism that is widely used in genetic studies because it has characteristics, such as short generation time and large numbers of progeny, that make it particularly useful for genetic analysis |
Pangenesis | Early concept of heredity proposing that particles carry genetic information from different parts of the body to the reproductive organs |
Inheritance of acquired characteristics | Early notion of inheritance proposing that acquired traits are passed to descendants |
Preformationism | Early concept of inheritance proposing that a miniature adult (homunculus) resides in either the egg or the sperm and increases in size in development, with all traits being inherited from the parent that contributes the homunculus |
Blending inheritance | Early concept of heredity proposing that offspring possess a mixture of the traits from both parents |
Cell theory | States that all life is composed of cells, that cells arise only from other cells, and that the cell is the fundamental unit of structure and function in living organisms |
Germ-plasm theory | States that cells in the reproductive organs carry a complete set of genetic information |