Natural Selection Flashcards
A trait that makes it more likely that an individual will survive in a specific environment
Adaptive Trait
A related organism from a previous generation
Ancestor
A long piece of DNA that contains many genes
Chromosomes
The number of individuals with each trait in each population
Distribution
A characteristic that all members of a species have
Feauture
An instruction for making a protein molecule
Gene
A specific form of a gene that provides instructions for making a particular protein molecule
Gene Version
A group of individuals born and living at about the same time
Generation
A random change to a gene that sometimes results in a new trait
Mutation
A group of the same type of organism living in the same area
Population
A type of large molecule that performs important functions inside organisms
Protein Molecule
Something in an environment that affects an individual’s chances of surviving
Selection Pressure
A group of organisms of the same kind that don’t produce with organisms from another group
Species
A specific characteristic of an individual organism
Trait
Any difference in traits between individual organisms
Variation
When organisms have parts that have the same structure but different functions
Homologous
When organisms have parts that serve the same function but are different structures
Analogous
When organisms have parts that they do not need anymore
Vestigal
