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End of Chapter Quiz
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1
As a result of the experiments performed by Frederick Griffith we found that
A)hereditary information within a cell cannot be changed.
B)hereditary information can be added to cells from other cells.
C)if hereditary information is added to a cell it will kill the organism.
D)hereditary information in the form of proteins can be added to cells.
2
The experiment performed by Alfred Hershey and Martha Chase showed that the molecule viruses use to specify new viruses is
A)a protein.
B)a carbohydrate.
C)ATP.
D)DNA.
3
Erwin Chargaff, Rosalind Franklin, Francis Crick, and James Watson all worked on pieces of information relating to
A)the structure of DNA.
B)the function of DNA.
C)the inheritance of DNA.
D)the mutations of DNA.
4
All four DNA nucleotides differ in
A)their sizes.
B)the number of hydrogen bonds they can form with their base pair.
C)the type of nitrogen base.
D)the type of sugar.
5
Which of the following lists the purine nucleotides?
A)adenine and cytosine
B)guanine and thymine
C)cytosine and thymine
D)adenine and guanine
6
If one strand of a DNA molecule has the base sequence ATTGCAT, its complementary strand will have the sequence
A)ATTGCAT.
B)TAACGTA.
C)GCCATGC.
D)CGGTACG.
7
Regarding the duplication of DNA, we now know that each double helix
A)serves as a template to produce an identical double helix next to it.
B)splits down the middle into two single helices, and each one then acts as a template to build its complement.
C)fragments into small chunks that duplicate and reassemble.
D)All of these are true for different types of DNA.
8
DNA polymerase can only add nucleotides to an existing chain, so ________________ is required.
A)a primer
B)helicase
C)a lagging strand
D)a leading strand
9
Genetic messages can be altered in two ways:
A)deliberately and accidentally.
B)through the chromosome or through the protein.
C)by mutation or by recombination.
D)by activation or by repression.
10
Mutations can occur in
A)germ-line tissues and be passed on to future generations.
B)somatic tissues and be passed on to future generations.
C)germ-line tissues and cause diseases such as lung cancer.
D)somatic tissues and cause diseases such as cystic fibrosis.







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