In 1952,Hershey and Chase confirmed Avery's (1944) conclusion that
A) proteins are the repositories for hereditary information.
B) DNA is the repository for hereditary information.
C) RNA is the repository for hereditary information.
D) each DNA molecule is composed of two strands that are twisted into a double helix.
E) the replication of DNA is semiconservative.
Correct Answer:
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Q18: DNA consists of two antiparallel strands of
Q19: Viruses that attack bacteria are called
A)phages
B)proviruses
C)virulent
D)lytic
Q20: Which statement about the Hershey-Chase experiment is
Q21: Information obtained by Franklin from X-ray crystallography
Q22: Eukaryotic organisms speed up the process of
Q24: The two strands of a DNA molecule
Q25: Endonucleases and exonucleases are enzymes that can
Q26: DNA replication always proceeds by adding new
Q27: During DNA replication,each new strand begins with
Q28: During replication,which enzyme unwinds the DNA double
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