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a cross that involves 1 pair of contrasting traits (eg: crossing purple flowers with white flowers)
describes organisms or genotypes that are homozygous for a specific trait and thus always produce offspring that have the same phenotype for that trait
an allele for a trait that will be masked unless the organism is homozygous for this trait
law of segregation
Mendel's law that states that the pairs of homologous chromosomes separate in meiosis so that only one chromosome from each pair is present in each gamete
law of independent assortment
Mendelian principle stating that genes for different traits are inherited independently of each other
a diagram that predicts the outcome of a genetic cross by considering all possible combinations of gametes
the crossing of an individual of unknown genotype with a homozygous recessive individual to determine the unknown genotype
the likelyhood that a possible future event will occur in any given instance of the event; the mathematical ratio of the number of times one outcome of any event is likely to occur to the number of possible outcomes of the event
a trait that is determined by a gene found on one of the sex chromosomes, such as the X chromosome or the Y chromosome in humans
a condition in which a trait in an individual is intermediate between the phenotype of the individual's two parents because the dominant allele is unable to express itself fully
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