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Cards In This Set
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A double helix looks like a twisted ladder. Which parts of a twisted ladder are analogous to the hydrogen bonds and the sugar-phosphate backbones of a double helix of DNA?
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Hydrogen bonds represent the rungs of the ladder. The sugar-phosphate backbone represent the two long sides of the ladder.
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Use Chargaff's rule to determine the approximate percentage of thymine in a DNA molecule, if 28% of the nucleotide in the molecule contain adenine.
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28%
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( ) concluded that the genetic material of a bacteriophag is DNA.
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Hershey and Chase
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( ) concluded that DNA was the factor that caused one bacterium to transform into another.
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Avery
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( ) concluded that bacteria could be transformed from harmless to disease-causing by an unknown factor.
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Griffith
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The structure of a DNA molecule can be described as a ( )
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Double helix
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The structure of DNA was discovered by ( ) and ( )
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James Watson and Francis Crick
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 Base pair...Nitrogen base...Sugar-phosphate backbone... |
Hydrogen bondsNucleotideSugar-phosphate backbone.
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Monomer of nuclei acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
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Nucleotide
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Principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine.
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Base Pairing
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Process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria.
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Transformation
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Virus that infects bacteria.
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Bacteriophage
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During DNA replication, the DNA molecule ( ) into two strands.
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Seperates
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At the end of DNA replication, ( ) new stands of DNA have been produced, giving a total of ( ) strands of DNA.
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Two.four.
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New DNA is replicated in strands complementary to old DNA because production of new DNA follows the rules of ( .)
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Base-pairing
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