an alternative form of a gene
condition in which both alleles for a gene are expressed when present
genetic trait that is expressed when its allele is homozygous or heterozygous
the first offspring from a cross of two varieties in the parental generation
the offspring from the crosses among individuals of the F1 generation
the study of heredity
the genetic makeup of an organism as indicated by its set of alleles
transmission of genetic traits from parent to offspring
refers to an individual with two different alleles for a trait
refers to an individual with two identical alleles for a trait
a condition in which a trait in an individual is intermediate between the phenotype of its two parents
Law of independent assortment
second law of heredity stating that pairs of genes separate independently of one another in meiosis
Law of segregation
the first law of heredity stating that pairs of alleles for a trait separate when gametes are formed
cross involving one pair of contrasting traits
the existence of more than two alleles for a genetic trait
P generation (parental generation)
the first two individuals that mate in a genetic cross
family history that shows how a trait is inherited over several generations
observable characteristics of an organism
characteristic of an organism that is influenced by several genes
the likelihood that a specific event will occur
diagram used by biologist to predict the probable outcome of a genetic cross
a genetic trait that is not expressed when the contrasting form of the trait is present
a trait that is determined by a gene found on the X chromosome
a genetic cross of an individual whose phenotype is dominant but whose genotype is unknown, with a homozygous recessive individual
displaying only one form of a particular trait in offspring
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