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Biology Test

Units 7

QuestionAnswer
Sutton helped establish the Chromosome theory of heredity
Chromosome Theory of Heredity Shows how chromosomes carry genes
Griffiths used two strains of pneumonia bacteria in his experiment Smooth (s) strain and the rough (r) strain
S strain Causes pneumonia
R strain Is harmless
Griffith injected mice with Different strain s of the bacteria
Mice with S strain Died
Mice with R strain Lived
S strain was covered in mucus so it was Deadly
R strain was not covered with anything so it was Harmless
Mice with boiled (dead) S strain Lived
Mice with boiled (dead) S strain and live R strain Died
S strain was deadly because Mucus prevented anything from destroying it
Who did the phages experiment? 2 scientists, Hershey and Chase
Phages a virus
Pages are made up of 2 things Proteins and DNA
Pages inject their genetic material into bacteria in order to Reproduce
Purpose of Phages experiment To find out whether genes where made up of DNA or Protein
Results of Phages experiment DNA carries genetic info.
DNA is made up of Nucleotides
Nucleotides are made up of 3 parts Phosphate group, deoxyribose, and a nitrogenous base
4 nitrogenous bases Adenine, Guanine, Cytosine, and Thymine
Purines Adenine, Guanine
Pyrimidines Cytosine, Thymine
Who discovered the Double Helix? Rosalind Franklin
What is the Double Helix? The shape of a DNA strand
Who received recognition for discovering the double helix? Watson, and Crick
How did Franklin the double helix? Using an x-ray picture of DNA
The enzyme that replicates DNA is called DNA polymerase
DNA polymerase replicates DNA by Finding free nucleotides in the nucleus and matching them to the parent strands
Linked genes Located on the same chromosome
Law of Independent Assortment If 2 or more traits are inherited, they will assort independently and not effect the outcome of other traits
Exception of the Law of Independent Assortment If traits are located on the same chromosome
Recombination happens during The tetrad formation during Meiosis
Created by: Meira L
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