Multiple Choice Questions

After allowing phages grown with bacteria in a medium that contained 32P and 35S, Hershey and Chase used a centrifuge to separate the phage ghosts from the infected cell. They then examined the infected cells and found that they contained _____, which demonstrated that _____ is the phage's genetic material.After allowing phages grown with bacteria in a medium that contained 32P and 35S, Hershey and Chase used a centrifuge to separate the phage ghosts from the infected cell. They then examined the infected cells and found that they contained _____, which demonstrated that _____ is the phage's genetic material. labeled DNA .... protein labeled DNA ... labeled protein labeled DNA ... DNA labeled protein .... protein labeled protein ... DNA
  • the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction
  • labeled DNA ... DNASince the phage DNA entered the infected cell, it makes sense that DNA is the genetic material.
  • a DNA sequence that is expressed to form a functional product: either RNA or polypeptide
  • 2, 1, 3, 5, 4
Hershey and Chase used _____ to radioactively label the T2 phage's proteins.Hershey and Chase used _____ to radioactively label the T2 phage's proteins. 222Ra 14C 92U 32P 35S
  • a DNA sequence that is expressed to form a functional product: either RNA or polypeptide
  • to add nucleotides to the 3' end of a growing DNA strand
  • 35SHershey and Chase used radioactive sulfur to label the phage's proteins.
  • DNAThe T2 phage consists of a protein coat and DNA. It is the DNA that contains P.
The leading and the lagging strands differ in that _____.The leading and the lagging strands differ in that _____. the leading strand is synthesized by adding nucleotides to the 3' end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5' end the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction the lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately stitched together the leading strand is synthesized at twice the rate of the lagging strand
  • the leading strand is synthesized in the same direction as the movement of the replication fork, and the lagging strand is synthesized in the opposite direction
  • labeled DNA ... DNASince the phage DNA entered the infected cell, it makes sense that DNA is the genetic material.
  • one low-density and one intermediate-density band
  • DNA contains phosphorus, whereas protein does not.
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Multiple Choice Questions
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