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17 terms

AP Bio Chapters 13-15

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Test Cross
A cross between an individual with a dominant trait and a homozygous recessive individual. Shows genotype of dominant individual.
Monohybrid Cross
Cross between two heterozygous individuals, shows which allele is dominant. Ratio will be 3:1 if one is dominant
Dihybrid Cross
Cross between two individuals that are heterozygous for two different traits, shows dominant allele. Ratio will be 9:3:3:1 for dominant
Linkage Group
Genes on the same chromosome that don't sort independently
Epistasis
multiple gene products affect a trait
Pleiotropic
A gene that affects multiple traits
Translocation
When part of a chromosome breaks off and attaches to another
Nondisjunction
When either sister chromatids or homologs don't seperate
Aneuploidy
When there are too many or too few chromosomes
Autosomal Dominant Inheritance Pattern
(Achondroplasia) (Anirdia)
Autosomal Recessive Inheritance Pattern
(Albinism) (Hereditary Methemoglobinemia)
X linked Recessive Inheritance Pattern
(Androgen Insensitivity Syndrome) (Red-Green colorblindness)
X linked Dominant Inheritance Pattern
(Fragile X Syndrome) (Incontinentia pigmenti)
Changes in Chromosome Number
(Down Syndrome) (Turner Syndrome)
Changes in Chromosome Structure
(Chronic Myelogenous Leukemia) (Cri du chat Syndrome)
Transgenic
An organism that has genes from other species
Xenotransplantation
Transferring an organ from one species to another