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Inheritance RPO

QuestionAnswer
Homologous Chromosomes chromosomes that are similar size, shape, and genetic material
Allele a gene that controls an alternative form of a genetic trait
Dominant an allele that is expressed even if a different, recessive allele for the same trait is also inherited
Recessive an allele that is not expressed when another, dominant allele for that trait is present
Homozygous an organism that has an identical pair of alleles for a trait
Heterozygous an organism that has different alleles for a trait
Genotype the alleles for a trait that an organism inherits from its parents
Phenotype a characteristic exhibited by an organism as a result of its genotype
Purebred an organism that has identical alleles for a particular trait
Law of Segregation describes the dividing of alleles from each parent into seperate gametes
Law of Independant Assortment states that genes for traits found on different chromosomes seperate independently
Testcross a deliberate genetic cross that can be used to determine whether a plant or animal is homozygous or heterozygous for a particular trait
Incomplete Dominance the phenomenon in which one alle is not completely dominant over another
Codominance the phenomenon in which both alleles contribute to a phenotype
Multiple Alleles three or more alleles of the same gene
Polygenic Trait a trait that is controlled by more than one gene
Trait a genetically determined characteristic or condition
Fertilization the process by which two gametes fuse to become a zygote
Characteristic a distinguishin trait or quality
Genetics the study of heredity
Offspring the cross between 2 organisms
Gene the basic physical unit of heredity
Created by: ryanoakley
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