Matching Pairs Mendel Genetics VocabOnline version Genetics vocabulary words and examples by alicia ussery 1 The passing of characteristics from parents to offspring 2 A diagram that predicts the outcome of a genetic cross 3 Law of Independent Assortment 4 The expressed form of the allele. 5 Recessive 6 Law of Segregation 7 The likelihood that a specific event will occur 8 Test Cross 9 Multiple alleles 10 P Generation 11 Two different alleles of a particular gene present in an individual EX- Rr 12 The different versions of a gene 13 The offspring of the P Generation 14 Pedigree 15 Two of the same alleles of a particular gene present in an individual EX: RR, rr 16 Phenotype 17 Monohybrid Cross 18 the science of heredity - traits are passed down from parents to offspring 19 A characteristic of an organism that is determined by many genes 20 The displaying of a phenotype that is intermediate (a mix) between parents. 21 Sex-Linked Gene 22 The offspring of the F1 Generation 23 When two dominate alleles are expressed at the same time F2 Generation The alleles of different genes separate independently of one another A trait that is not expressed when the dominant trait is present. F1 Generation Incomplete Dominance Alleles Codominance Genetics A family history that shows how a trait is inherited over several generations A cross that involves ONE pair of contrasting traits. Dominant Homozygous Punnett Square Probability A trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome. Heredity The physical appearance of a character EX: brown hair, green eyes, etc. An individual whose phenotype is dominant, but whose genotype is not known, is crossed with a homozygous recessive individual. Heterozygous Polygenic Inheritance Two alleles for a character segregate when gametes are formed. The parental generation - original two individuals that are crossed during a breeding experiment. genes with more than two alleles EX: blood type
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