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30 Cards in this Set
- Front
- Back
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Gene linkage
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genes close on Chr. inherited together
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crossing over
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exchanging of chr. segments
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Thomas Morgan
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studied fruit flies
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sex chromosomes
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chr. that direct sexual characteristics
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Autosomes
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chr that contains genes for characteristics
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polygenic inheritance
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trait produced by 2/more genes
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pleiotrophy
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gene for mult. phenotypic traits
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mult. alleles
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several alleles for a gene
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antigen
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protien marker that helps immune w/ foreign particles
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antibodies
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protein made by B cells- kills pathogens
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sex-linked traits
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traits on x chr
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red/green color blindness
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2 instead of 3 retinal cone pigments
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genetic maps
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list of ordered genes for a spec. genome
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point mutation
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change in ONE nucleotide
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frameshift
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add/del nucleotide
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deletion
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del nucleotide
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duplication
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nucleotide is copied
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insertion
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extra nucleotide added
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translocation
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DNA moved position
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monosomy
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del portion of chr. 9
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trisomy
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3 instead of 2 copes of a chr.
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nondisjunction
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fail of chr. seperation
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polyploidy
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more than twice the haploid chr
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amniocentesis
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prenatal test of chr. abnormalities and fetal infections
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rh blood groups
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system of red blood cell antigens
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sickle cell
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point mutation---> blood cells= diff shape
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mutagens
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increases genetic mutation rate
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inducer
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activates repressor action
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operon
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DNA functions as a transcription unit
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repressor
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protein binds to an operator and blocks transcription of genes
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