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Multiple Choice Quiz
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1

Which of the following experiments suggested that the nucleus is the repository for genetic information?
A)Hammerling's experiment using Acetabularia
B)Griffith's experiment using S. pneumoniae and mice
C)the Hershey and Chase experiment using bacteriophages
D)Franklin's X-ray diffraction
2

When Hershey and Chase differentially tagged the DNA and proteins of bacteriophages and allowed them to infect bacteria, what did the viruses transfer to the bacteria?
A)radioactive phosphorus and sulfur
B)radioactive sulfur
C)DNA
D)Both b and c are correct.
3

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
4

DNA is made up of building blocks called
A)proteins.
B)bases.
C)nucleotides.
D)deoxyribose.
5

X-ray diffraction experiments conducted by _____________ led to the determination of the structure of DNA.
A)Francis Crick
B)James Watson
C)Erwin Chargaff
D)Rosalind Franklin
6

Meselson and Stahl proved that
A)DNA is the genetic material.
B)DNA is made from nucleotides.
C)DNA replicates in a semiconservative manner.
D)DNA is a double helix held together with base-pairing.
7

DNA polymerase III can only add nucleotides to an existing chain, so _________________ is required.
A)an RNA primer
B)DNA polymerase I
C)helicase
D)a DNA primer
8

Okazaki fragments are
A)synthesized in the 3' to 5' direction.
B)found on the lagging strand.
C)found on the leading strand.
D)assembled as continuous replication.
9

Beadle and Tatum's experiment showed that each enzyme is specified by a single
A)chromosome.
B)gene.
C)nucleotide.
D)mutation.
10

What was significant about Ingram's work on sickle cell anemia?
A)The gene for hemoglobin was missing.
B)Proteins consisted of sequences of amino acids.
C)A change in one amino acid can affect a protein's structure.
D)One gene encodes one protein.







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