Choose the best answer

1			Which of the following experiments suggested that the nucleus is the repository for genetic information? Need a Hint?
			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? Need a Hint?
			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 Need a Hint?
			A)	ATTGCAT
			B)	TAACGTA
			C)	GCCATGC
			D)	CGGTACG
4			DNA is made up of building blocks called Need a Hint?
			A)	proteins.
			B)	bases.
			C)	nucleotides.
			D)	deoxyribose.
5			X-ray diffraction experiments conducted by _____________ led to the determination of the structure of DNA. Need a Hint?
			A)	Francis Crick
			B)	James Watson
			C)	Erwin Chargaff
			D)	Rosalind Franklin
6			Meselson and Stahl proved that Need a Hint?
			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. Need a Hint?
			A)	an RNA primer
			B)	DNA polymerase I
			C)	helicase
			D)	a DNA primer
8			Okazaki fragments are Need a Hint?
			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 Need a Hint?
			A)	chromosome.
			B)	gene.
			C)	nucleotide.
			D)	mutation.
10			What was significant about Ingram's work on sickle cell anemia? Need a Hint?
			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.