Study

Natural and Artificial Selection

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  • Practical uses of genetic knowledge, such as in agriculture, medicine, and conservation efforts.
    Applications of Genetics
  • A trait that is beneficial to an organism and will likely be chosen by natural selection
    Favorable Trait
  • A tool used to analyze the possible allele combinations of the offspring between two individuals
    Punnett Square
  • A characteristic of an organism; can be genetic or acquired
    Trait
  • A trait that is masked by a dominant trait and is only expressed in the phenotype when two copies are present.
    Recessive Trait
  • The mating of two organisms to analyze the inheritance of specific traits.
    Cross
  • Process by which organisms with favorable traits produce more successful offspring than organisms with less-favorable traits, causing the favorable traits to become more common in the population
    Natural Selection
  • The exact genetic information carried by an individual
    Genotype
  • The study of heredity and the variation of inherited characteristics.
    Genetics
  • The direct manipulation of genetic material to alter the hereditary traits of a cell, organism, or population
    Genetic Engineering
  • The basic physical and functional unit of heredity made up of DNA
    Gene
  • The physical expression of a gene or set of genes; the appearance of an organism
    Phenotype
  • A characteristic that is passed from parent to offspring
    Inherited Trait
  • Different forms of a gene that can exist at a specific location on a chromosome.
    Allele
  • A form of artificial selection where humans deliberately breed plants and animals for desired traits
    Selective Breeding
  • A diagram that shows how traits are passed through multiple generations
    Pedigree
  • The measure of the likelihood that a particular event will occur, often expressed as a fraction or percentage.
    Probability
  • A trait that masks the effect of a recessive trait when both are present; it is expressed in the phenotype.
    Dominant Trait
  • An organism that has two different alleles for a particular gene
    Heterozygous