Exam 8: Dna Structure and Function

The significance of Fred Griffith's experiment in which he used two strains of Streptococcus pneumoniae is that

The following questions should be answered using the figure above. -The above figure represents the research of which of the following researchers?

Is it possible to prevent mutations entirely?

Which of the following is not a goal of cloning?

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 -Miescher

The following questions refer to the figure above. -The figure illustrates

Classification.Answer the following questions in reference to the five nucleotides listed below: a.guanine b.cytosine c.pyrimidine d.thymine e.uracil -Experiments with bacteria and __________ offered solid evidence that deoxyribonucleic acid (DNA), not protein, is hereditary material.

Which of the following is not true of mutations?

Classification.Answer the following questions in reference to the five nucleotides listed below: a.guanine b.cytosine c.pyrimidine d.thymine e.uracil -This nucleotide is not incorporated into the structure of the DNA helix.

DNA is replicated by a process called __________.

James Watson and Francis Crick

Which of the following is true of embryo cloning?

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 -Griffith

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 -Chargaff

The DNA strands that will be together in the new DNA molecules are

Rosalind Franklin was the first scientist to work with

Each DNA strand has a backbone that consists of alternating

If a mixture of bacteriophages, some labeled with radioactive sulfur and others labeled with radioactive phosphorus, is placed in a bacterial culture, the bacteria will eventually contain

DNA polymerases

Which scientist(s) discovered the basis for the base-pair rule, which states that the amounts of adenine and thymine match, as do the amounts of cytosine and guanine?