18 AP Biology Unit 7 Evolution

Front

What is evolution?

Back

Evolution is the process by which different kinds of living organisms develop and diversify from earlier forms during the history of the earth.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for building a specific protein or set of proteins.

Front

What is a dominant trait?

Back

A dominant trait is a genetic trait that is expressed in a person even if only one copy of the gene is present.

Front

What is a recessive trait?

Back

A recessive trait is a genetic trait that is only expressed when two copies of the gene are present.

Front

What is gene duplication?

Back

Gene duplication is a process by which a segment of DNA is copied, resulting in two identical genes.

Front

What is divergence in genetics?

Back

Divergence in genetics refers to the process by which two or more related genes evolve different functions.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell engulfs material from its environment, bringing it into the cell.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, specifically the alleles present for a particular gene.