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33 Cards in this Set

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Diagram used by biologists to predict the probable outcome of a cross.
Punnett square
Punnett square
The trait that is not expressed in F1 generation after crossing.
Recessive trait
Recessive trait
Process by which a plant pollinates itself.
Self-pollination
Self-pollination
A trait that is determined by a gene found on the X chromosome.
Sex-linked trait
Sex-linked trait
Condition caused by a mutant allele that produces a defective form of the protein hemoglobin.
Sickle cell anemia
Sickle cell anemia
Displaying only one form of a particular trait in offspring.
True-breeding
True-breeding
Law stating that pairs of genes separate independently of one another in meiosis.
Law of independent assortment
Law of independent assortment
Genetic disorder in which an individual lacks an enzyme that converts the amino acid phenylalanine into the amino acid tyrosine.
Phenylketonuria (PKU)
Phenylketonuria (PKU)
An alternative form of a gene.
Allele
Allele
Condition in which both alleles for a gene are expressed when present.
Codominance
Codominance
A genetic phenomenon in which a trait is controlled by several genes and therefore exhibits a variety of phenotypes.
Continuous variation
Continuous variation
Transfer of pollen from the male structures of one plant to the females structures of a different plant of the same species.
Cross-pollination
Cross-pollination
A cross that involves two pairs of contrasting traits.
Dihybrid cross
Dihybrid cross
Trait that is expressed when its allele is homozygous or heterozygous.
Dominant trait
Dominant trait
The offspring from a cross of two varieties.
F1 generation
F1 generation
The offspring from crosses among individuals of the F1 generation.
F2 generation
F2 generation
Harmful effect,such as sickle cell anemia,produced by mutated genes.
Genetic disorder
Genetic disorder
Study of heredity.
Genetics
Genetics
Genetic constitution of an organism as indicated by its set of alleles.
Genotype
Genotype
Component of rad blood cells that binds with and carries oxygen through the body.
Hemoglobin
Hemoglobin
Genetic disorder that impairs the blood's ability to clot and can cause excessive bleeding.
Hemophillia
Hemophillia
Transmission of genetic traits from parent to offspring.
Heredity
Heredity
Refers to a pair of genes, or an individual, with two different alleles for a trait.
Heterozygous
Heterozygous
Refers to a pair of genes, or an individual, with two identical alleles for a trait.
Homozygous
Homozygous
Condition in which a trait is intermediate between two parents.
Incomplete dominance
Incomplete dominance
Law stating that pairs of genes separate in meiosis and each gamete receives one gene of a pair.
Law of segregation
Law of segregation
Cross involving one pair of contrasting traits.
Monohybrid cross
Monohybrid cross
Having more than two alleles( versions of the gene) for a genetic trait.
Multiple alleles
Multiple alleles
Change in the DNA of gene or chromosome.
Mutation
Mutation
Family history of traits recorded over generation.
Pedigree
Pedigree
(Parental generation) plants that displayed only one form of a particular trait.
P generation
P generation
Observable characteristics of an organism.
Phenotype
Phenotype
The likelihood that a specific event will occur.
Probability
Probability