Bio Test (Makeup) Flashcards
Organism that is heterozygous for a disorder caused by a recessive allele. Organism does not have the disease, but can pass on the disease-causing allele to offspring
Carrier
Gene that is located on a sex chromosome (usually the X chromosome)
Sex-linked gene
In female mammals, one of the X chromosomes is randomly “turned off.” Example: Calico Cats
X-Chromosome inactivation
Chart that helps trace the phenotypes and genotypes in a family. Can be used to identify possible carriers of a disorder
Pedigree
A picture of all the chromosomes for an organism. Can be used to identify chromosome disorders, such as the addition or deletion of a chromosome.
Karyotype
Neither allele is completely dominant or recessive
Incomplete Dominance
Both alleles are completely expressed
Codominance
Genes that have more than two alleles
Multiple Alleles
Polygenic Traits
Traits produced by 2 or more genes
Epistasis
gene that interferes with express of other genes
2 sex linked traits
hemophilia color blind
If its epistatic
white
Polygenic traits and type of graph
Hair color, eye color, height bell curve
Difference between complete dominance and incomplete dominance
Complete: 2 red 2 white Incomplete: 4 pink
Dark square: Man who has disease
White circle: Woman no disease
Half colored circle: Carrier Woman