LAB Study Stack
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Actual genetic makeup | Genotype
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| Chromosomes determining malesness/femaleness | Sex Chromosomes
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| situation in which an individual has identical alleles for a particular trait | Homozygons
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| genes not expressed unless they are present in homozygous condition | recessive
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| Expression of a genetic trait | phenotype
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| Situation in which an individual has different alleles making up his genotype for a particular trait | heterozygous
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| genes for the same trait that may have different expressions | alleles
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| chromosomes regulating most body characteristics | autosomes
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| The more potent gene allele: masks the expression fo the less potent allele | dominant
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| What does it mean when someone says a particular characteristic is sex-linked? | It is carried on the F(X) sex chromosome
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| You are a male and you have been told that hemophilia "runs in your genes" whose ancestors, should you investigate? Moms or Dads? | Moms because males can only receive the X chromosome from their mothers, the fathers contribution is always Y
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| Why are marriages between blood relatives prohibited in most cultures? | Because blook relatives have similar gene pools thus the likelihood of receiving a double-dose of recessive genes is increased.
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| Phenylthiocarbamide (PTC); | Is extremely bitter tasting to some people
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| DNA has a negative charge due to; | a negative backbone
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| DNA moves through gel: | away from negative toward positive electrode
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