Genetics Chapter 1

Front 1

Humans possess how many genes?

Back 1

20,000 to 25,000

Front 2

A complete set of genetic instructions for any organism

Back 2

Genome

Front 3

All genomes are encoded in nucleic acids- either ____ or ____.

Back 3

DNA or RNA

Front 4

Encompasses the basic principles of genetics and how traits are passed from one generation to the next

Back 4

Transmission Genetics

Front 5

Concerns the chemical nature of the gene itself: how genetic information is encoded, replicated and expressed.

Back 5

Molecular Genetics

Front 6

Explores the genetic composition of groups of individual members of the same species and how that composition changes over time and with geographic space.

Back 6

Population Genetics

Front 7

Organisms with characteristics that make them particularly useful fo genetic analysis and about which a tremendous amount of information has accumulated

Back 7

Model Genetic Organisms

Front 8

Concept in which specific particles, later called gemmules, carry information from various parts of the body to the reproductive organs, where they are passed to the embryo at the moment of conception.

Back 8

Pangenesis

Front 9

Notion in which traits acquired during one's lifetime become incorporated into one's hereditary information and are passed on to the offspring.

Back 9

Inheritance of Acquired Characteristics

Front 10

Concept that inside an egg there is a miniature adult, or homunucleus, which enlarges during development.

Back 10

Preformationism

Front 11

Proposed that offspring are a blend, or mixture, of parental traits.

Back 11

Blending Inheritance

Front 12

All life is composed of cells, cells arise only from preexisting cells, and the cell is the fundamental unit of structure and function in living organisms.

Back 12

Cell Theory

Front 13

Theory that holds that the cells in the reproductive organs carry a complete set of genetic information that is passed to the egg and sperm.

Back 13

Germ-Plasm Theory

Front 14

Who proposed that genes are located on chromosomes?

Back 14

Walter Sutton

Front 15

Discovered the first genetic mutant of fruit flies.

Back 15

Thomas Hunt Morgan