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| cant predict mutt, purebreed not definatley better, only more predictability about genotype |
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b/c they are easy to grow and distinguish varieties
strict control of fertilization
most self fetilize
crossed-bred them |
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| metafemale- not as many problems but increases your chance |
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| mendel found out that there are different forms of genes |
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| units that determine heritable traits |
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| F stands for filial-latin |
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| alternate forms of a gene (one of forms exist at a specific locus on chromosomes |
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| mendels law of segregation describes the inheritance of a --- characteristic |
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| each person has --- for each characteristic |
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| 2 genes (alleles) one from each parent |
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| if the2 alleles of an inherited pair differ, then one determines the organisms appearance and is called... |
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| the other allele that has no noticable effect on the organisms appearance |
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| Mendels law of segregation predicts that.. |
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| allele pairs seperate form each other during the production of gametes |
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| computes what is possible |
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| where the specific genes lie |
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| what bears the two alleles for each characteristic |
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| law of independant assortment |
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| states that alleles of a pair segregate independantley of other allele pairs during gamete formation, revealed by tracking two characteristics at once |
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can determine unknown genotypes
match between an individual of unknown genotype and homozygous recessice individual
reveals unknowns genotype |
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| compound event (more than one thing at the same time)is the product of the probabilities |
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| heterozygous, have recessive gene but dont show it, predisposed for hereditary condition |
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degenerate nerve disease that does not appear phenotypically until middle age
dominant disorder |
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regularly screen for this at birth
evaluate urine,cannot break down phenylalamine( an amino acid) |
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| invasive test- amino centesis |
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part of fetal testing
take fluid of uterus of pregnant female and look at it |
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| invasive test-CVS (chorionic villus sampling) |
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Definition
take a piece of placenta and send it to the lab
fetal testing |
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| ultrasound imaging uses sound waves to produce a picture of the fetus |
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| fatal if homozygous dominant, shows if heterozygous, dominant disorder |
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results in intermediate phenotypes
when an offsprings phenotype is in-between the phenotypes of the parents |
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condition in which both alleles are completley expressed
both expressed in the phenotype |
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effecting phenotype in many ways
single gene influences several characteristics |
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| one charateristic controlled by several genes |
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genes found on same chromosome
physically linked
tend to move together
exception to mendels law of independant assortment |
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| crossing over can seperate linked alleles, producing gametes with different (...) chromosomes |
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genes are on the sex chromosome
X chromosome carries many genes unrelated to sex
inheritance pattern is different in male and femalesex |
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effect mostly male
male recieving a single x-linked allele form his mother will have the disorder
female has to recieve the allele from both parents to be effected |
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| no blood clotting factor genetically |
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