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WorksheetsHistory, Function and Structure of DNA! Chapter #13
Total questions: 28
Worksheet time: 14mins
DNA is a directional molecule. The end with the red circle is the
5' end.
3' end.
phosphate end.
sugar end.
Is structure X a purine or a pyrimidine?
Purine
Pyrimidine
Is structure W a purine or a pyrimidine?
Purine
Pyrimidine
What is structure Z?
Nitrogen Base
Sugar
Phosphate
Hydrogen Bond
What is structure Y?
Nitogenous Base
Sugar
Phosphate
Hydrogen Bond
What type of bonds occur between structures W and X?
Hydrogen Bonds
Covalent Bonds
Ionic Bonds
Phosphodiester Bonds
What type of bond occurs between Z of one nucleotide and structure Y of the next?
Hydrogen Bonds
Covalent Bonds
Ionic Bonds
Van der Waals Forces
Based on the length of the base labeled X and the number of bonds it shares with W, what is the name of this base?
Adenine
Thymine
Cytosine
Guanine
Because the two strands of DNA run in opposite directions, we say that they are
semi-conservative
anti-parallel
double helix
replicating
Letter d represents the beginning of the area of the original DNA molecule that has been unzipped to allow for replication. It is known as the
okazaki fragment
leading strand
lagging strand
replication fork
Letter e represents the ________________________, of which both new molecules are an identical copy.
DNA
Okazaki Fragment
Enzyme
RNA
Letter c represents the leading or lagging strand?
Leading
Lagging
The direction in which DNA is replicated is ...
3' to 5'
5' to 3'
Right to Left
Left to Right
Letter a is considered to be the _______________________ strand, because it is the pattern for the complementary strand.
stencil
pattern
template
example
In Griffith’s bacterial transformation experiments
Harmless bacteria are infected by viruses.
Harmful bacteria are infected by viruses
Harmless bacteria change into harmful bacteria.
Harmful bacteria change into harmless bacteria.
What did Avery conclude caused transformation?
A lipid was the transforming factor.
DNA was the transforming factor.
A carbohydrate was the transforming factor.
A protein was the transforming factor.
What is inside a bacteriophage?
Carbohydrate
Protein
Nucleic Acid
Lipid
What do bacteriophages infect?
Bacteria
Viruses
Humans
Mice
Which of the following could make up one nucleotide found in DNA?
Deoxyribose + phosphate group + polymerase
Deoxyribose + phosphate group + cytosine
Cytosine+ phosphate group + guanine
Adenine + phosphate group + thymine
What did Rosalind Franklin contribute to the effort to identify the structure of DNA?
Models of cardboard and wire showing the shape of DNA
X-ray diffraction photos of the DNA molecule
Radioactive evidence that DNA carried the genetic code
The ratios of the two sets of nucleotide pairs in DNA
In eukaryotes, DNA
floats freely in the cytoplasm.
Is located in the nucleus.
is circular.
is located in the ribosomes.
DNA is copied during a process called
Transformation.
Transcription.
Translation.
Replication.
Based on the semi-conservative model of DNA replication, replication results in two DNA molecules....
One with two new strands and the other with two original strands.
Each with one new strand and one original strand.
Each with two original strands.
Each with two new strands.
1. Figure 12-1 shows the results of measuring the percentages of the four bases in the DNA of three organisms. Some of the values are missing. Based on Chargaff’s rule, the percentages of Guanine bases in the Bacterium DNA should be around...
13.4 %
26.8%
73.2%
36.6%
A CHROMOSOME is represented by the letter...
A
B
C
D
The structure labeled C is the ...
Chromosome
Double Helix
Supercoil
Nucleosome
The NUCLEOSOME is represented by the letter...
A
B
C
D
The letter A represents the ....
Chromosome
Double Helix
Nucleosome
Supercoil
