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Exam 8: Dna Structure and Function

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Question 1

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DNA replication is

A) redundant.
B) semiconservative.
C) progressive.
D) conservative.
E) repetitive.

F) C) and D)
G) A) and B)

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verified

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Question 2

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Franklin's assignment at Cambridge was to investigate the structure of

A) proteins.
B) coal.
C) DNA.
D) carbohydrates.
E) lipids.

F) C) and E)
G) B) and C)

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C

Question 3

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A bacterium undergoes four rounds of replication.How many cells would result, and how many of those cells would still have part of an original DNA strand from the starting bacterium ?

The following questions refer to the figure above and to the Fred Griffith experiments involving Streptococcus pneumoniae. -If the syringe contains live R strain and heat-killed S strain Streptococcus pneumoniae

The significance of the Hershey and Chase experiments in which ³²P and ³⁵S were used is that

MATCHING Choose the one most appropriate answer for each. a.discovered that the hereditary system of one strain of bacteria could be transformed by the hereditary system from another strain of bacteria b.first to discover DNA and isolate it from fish sperm c.discovered that DNA-digesting enzymes prevented bacterial transformation d.the first to build an accurate model of DNA and to describe it explicitly in a publication e.the first to demonstrate, through the use of radioactive isotopes, that DNA, not protein, is the genetic material f.provided two important clues to the structure of DNA; one clue is that A = T and the other is that C = G g.discovered the structure of collagen h.obtained excellent X-ray diffraction photographs that suggested that DNA was a long, thin molecule with regularly repeating units -Watson and Crick

Classification.Answer the following questions in reference to the five nucleotides listed below: a.guanine b.cytosine c.pyrimidine d.thymine e.uracil -Erwin Chargaff's data indicates that within a species the amount of adenine is always equal to the amount of this.

MATCHING Choose the one most appropriate answer for each. a.discovered that the hereditary system of one strain of bacteria could be transformed by the hereditary system from another strain of bacteria b.first to discover DNA and isolate it from fish sperm c.discovered that DNA-digesting enzymes prevented bacterial transformation d.the first to build an accurate model of DNA and to describe it explicitly in a publication e.the first to demonstrate, through the use of radioactive isotopes, that DNA, not protein, is the genetic material f.provided two important clues to the structure of DNA; one clue is that A = T and the other is that C = G g.discovered the structure of collagen h.obtained excellent X-ray diffraction photographs that suggested that DNA was a long, thin molecule with regularly repeating units -Hershey and Chase

Somatic cell nuclear transfer is a type of

Classification.Answer the following questions in reference to the five nucleotides listed below: a.guanine b.cytosine c.pyrimidine d.thymine e.uracil -Two hydrogen bonds connect adenine to __________ in the DNA molecule.

The experiments of which of the following researchers clearly distinguished DNA and NOT protein as the hereditary material?

The following questions refer to the figure above and to the Fred Griffith experiments involving Streptococcus pneumoniae. -Extracts of pathogenic bacteria can transform harmless bacteria to harmful bacteria unless ____ enzymes are added to the extract.

Strand B has the same order of nucleotides as strand(s)

Which of the following statements is true?

Friedrich Miescher is credited with

MATCHING Choose the one most appropriate answer for each. a.discovered that the hereditary system of one strain of bacteria could be transformed by the hereditary system from another strain of bacteria b.first to discover DNA and isolate it from fish sperm c.discovered that DNA-digesting enzymes prevented bacterial transformation d.the first to build an accurate model of DNA and to describe it explicitly in a publication e.the first to demonstrate, through the use of radioactive isotopes, that DNA, not protein, is the genetic material f.provided two important clues to the structure of DNA; one clue is that A = T and the other is that C = G g.discovered the structure of collagen h.obtained excellent X-ray diffraction photographs that suggested that DNA was a long, thin molecule with regularly repeating units -Avery

The concept proven by the experiment in this figure is that

Which of the following is not potentially part of a chromosome in eukaryotes?

MATCHING Choose the one most appropriate answer for each. a.discovered that the hereditary system of one strain of bacteria could be transformed by the hereditary system from another strain of bacteria b.first to discover DNA and isolate it from fish sperm c.discovered that DNA-digesting enzymes prevented bacterial transformation d.the first to build an accurate model of DNA and to describe it explicitly in a publication e.the first to demonstrate, through the use of radioactive isotopes, that DNA, not protein, is the genetic material f.provided two important clues to the structure of DNA; one clue is that A = T and the other is that C = G g.discovered the structure of collagen h.obtained excellent X-ray diffraction photographs that suggested that DNA was a long, thin molecule with regularly repeating units -Pauling

Franklin worked closely with