chromosome theory of inheritance
a theory that states that genes have specific positions along chromosomes that undergo independent assortment
the dominant, most common phenotype
the phenotype that is different from the wild type that us usually caused by a mutation
a gene located on a sex chromosome
a gene located on the y chromosome
genes attatched to x chromosome, about 1100 of them
describes allele arrangement for males who only have one locus
Duchenne muscular dystrophy
a disease that causes weakening and loss of coordination. due to a gene that is x-linked
an x-linked recessive genetic disorder. stops blood from clotting
the condensed body of inactive x chromosomes in females when only one half needs to be active
genes near each other on a chromosome that are inherited together
offspring that match either of parent's phenotype
offspring with different traits than their parents
nonparental types with different phenotypes (shape, color)
homologous pairs that exchange proteins between paternal and maternal chromatids
a list of genetic locations of a chromosome. discovered by Morgan's student
a diagram of recombination frequencies
distance between genes
a genetic map that locates genes relative to chromosomal features
when the meiotic spindle doesn't equally distribute chromosomes to daughter cells
when an abberant gamete (one affected by nondisjunction) joins a normal gamete, the daughter cells are aberrant too
when a zygote is missing a single chromosome
when a zygote has a single extra chromosome
when an organism has more than 2 chromosome sets (triploidy has 3 sets; tetraploidy has 4 sets)
a segment is erased
a sister chromatid gets another segment that is the same as one it already has. it usually comes from a deleted chromatid
rearranges a segment within a chromosome
two segments from two different nonhomologous pairs switch places
an aneuploid condition, where a person has an extra chromosome 21 bringing the total number of chromosomes to 47
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