Exam 1
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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| Isolated a phosphorus- rich substance called nuclein from puss soaked bandages salved from a German hospital? | Friedrich Miescher
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| Researched on the fruit fly; uncovered the basis of genetic linkage. | Thomas Hunt Morgan
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| Uncovered the basic rules of inheritance using the pea plant; found that inheritance is particulate with each trait being based on two factors with one or the other factor being passed on intact from parent to offspring. | Gregor Mendel
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| 19th century researcher studied the roundworm (Ascaris) and found that germ line cells have half the number of chromosomes than somatic line cells | Theodore Boveri
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| Clipped the tails off of mice generation after generation to test the idea of inheritance of acquired characters | August Weismann
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| 19th century researcher; came up with the first viable mechanism by which evolutionary change may occur; based on the differential survival and reproduction of different variants in the population | Charles Darwin
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| Expert in X-ray crystallography data and adopted a model buiding approach to finally decipher the structure of the DNA molecule | James Watson
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| 18th and early 19th century researcher; hypothesized that evolution worked through a model of inheritance of acquired characteristics | Jean- Baptiste Lamarck
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| The process of copying messenger RNA from a DNA template | Transcription
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| The process of producing polypeptide sequences from a messenger RNA sequence. | Translation
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| Exchange between two homologous chromosomes resulting in new combinations of alleles across different loci | Recombination
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| Type of bond occuring between complimentary bases holds the two strands of the double stranded DNA molecule together | Hydrogen Bonds
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| the enzyme that unwinds doule stranded DNA at the replication fork | Helicase
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| The Messelson- Stahl experiment demonstrated the DNA replication is... | Semiconservative
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| Chromosomes consist of chromatin, a material made of... | DNA and proteins
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| In eukaryotic organisms, genes are transcribed int RNA molecules that in turn undergo processing that removes certain segments called... | Introns
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| The inheritance of cytosine bases that have been methylated in a parent is an example of... | Epigenetics
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| Genes can be regulated by... | splicing out different bits of RNA, turning transcription on or off, making mRNA molecules more or less stable, controlling the timing of translation
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| The proportion of the phenotypic variation thast is due to genetic variation | Heritability
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| Genes thgat are widely expressed across many differnt types of cells because they encode for proteins vital to the basic function of all cells | Housekeeping Genes
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| DNA may be transcribed into... | tRNA, mRNA, or rRNA
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