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25 Cards in this Set
- Front
- Back
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Anapleudy |
Condition where one or more chromosomes are present as extra copies or are deficient in copies |
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Non disjunction |
An error in meiosis or mitosis where homologous chromosomes at sister chromatids fail to separate Ex: n - 1 or n - 4 Trisomy and monosomy |
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Chromatin is made up of |
Histones and DNA |
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Name the scientists of this unit |
Gregor Mendel, Thomas Hunt Morgan, Fred Griffith, Hershey and Chase |
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Name the scientists of this unit |
Gregor Mendel, Thomas Hunt Morgan, Fred Griffith, Hershey and Chase |
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Gregor Mendel |
Used pea plants to discover the law of segregation and law of independent assortment and prove wrong the blending theory |
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Name the scientists of this unit |
Gregor Mendel, Thomas Hunt Morgan, Fred Griffith, Hershey and Chase |
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Gregor Mendel |
Used pea plants to discover the law of segregation and law of independent assortment and prove wrong the blending theory |
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Law of independent assortment |
Alleles of genes on nonhomologous chromosomes assort independently during gamete formation |
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Name the scientists of this unit |
Gregor Mendel, Thomas Hunt Morgan, Fred Griffith, Hershey and Chase, Meselson and Stahl |
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Gregor Mendel |
Used pea plants to discover the law of segregation and law of independent assortment and prove wrong the blending theory |
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Law of independent assortment |
Alleles of genes on nonhomologous chromosomes assort independently during gamete formation |
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Law of segregation |
Two alleles for each gene separate during gamete formation |
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Thomas hunt morgan |
Used fruit flies to discover sex linked genes |
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Examples of sex linked genes in humans |
Muscular dystrophy, hemophilia |
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Barr body |
In females, when the inactive x shrivels and goes to the side of the cell |
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Barr body |
In females, when the inactive x shrivels and goes to the side of the cell |
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Explain why tortoiseshell cats happen |
Each x contains an orange and black hair gene but each had an inactive form of each Ex: if the cell with the active form of black shrivels up, orange will show up at that part |
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Linked genez |
Genes that are close to each other on the chromosome so they get passed down together |
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Scientific name for fruit flies |
Drosophila Melanogastor |
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What is downsyndrome |
An extra 21st chromosome (trisonomy) so it is often called trisonomy 21 |
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Nuclease |
An enzyme that cuts DNA or RNA |
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Telomere |
Repetitive sequence at the end of DNA |
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Telomere |
Repetitive sequence at the end of DNA molecule and protects genes from being eroded |
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Telomere |
Repetitive sequence at the end of DNA molecule and protects genes from being eroded |
