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Genetic terms
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Phenotypes Phen= to show or bring to light
It’s the phenotype is what shows Like eye color, hair color, hair texture Genotype determines the phenotype
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Recesive The non-dominate
Both need to be recessive to show the phenotype Like blonde hair, normal height Example: ss, hh Sickle cell, hemophilia are recessive Recessive does not mean rare (six fingers is a dominate trait) also called polydactyl
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Genotype Genetic make up of an organism
There are three possible genotype
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Dominate Dominate trait is the one that shows more
It can show if there is a Aa or AA Only need one allele to make it dominate Dwarfism and Huntington's disease Dark hair and eyes
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Alleles There are two alleles for each trait
They code for a genetic trait They can be dominate or recesive
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Centromeres Centromeres are used by the spindle fiber to pull the sister chromatids towards the opposite pole
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Chromatid Chromatid is one strand of the divided chromosome
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Mutation Is a change in DNA Mistakes when DNA is copied
Cuts the DNA in section
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Pedigree Used to look at the pattern of a disease in a pattern
Can track genetic diseases and show the probability of a child getting it Genetic counselors use them
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Gene Humans have 20,000 to 30,000 genes. Genes make you who you are
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Homologous Means same proportion.
Are the ones from mom and the one from dad
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Telemore A region of nucleotide sequences at each end of a chromatid.
It protects the end of chromosome and protects it from deterioration
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