In his experiments using bacteria and mice, Griffith discovered that: heat-killed bacteria can kill mice non-pathogenic bacteria can never be made to cause disease some substance from pathogenic cells could be transferred to non-pathogenic cells, making them pathogenic the capsule from pathogenic bacteria could transform non-pathogenic bacteria

In his experiments using bacteria and mice, Griffith discovered that: heat-killed bacteria can kill mice non-pathogenic bacteria can never be made to cause disease some substance from pathogenic cells could be transferred to non-pathogenic cells, making them pathogenic the capsule from pathogenic bacteria could transform non-pathogenic bacteria

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter1: A View Of Life

Section: Chapter Questions

Problem 1TYU

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The bacteria in your digestive system ___. Select one: a. can digest a sugar found in breastmilk b. can produce vitamin E c. can prevent c.diff illness d. are all prokaryotes e. All of the above are true of the bacteria in your digestive system
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Frederick Griffith documented bacterial transformation. Which statement is true concerning his experiments? DNA that was not contained within a live cell caused the death of the host organism. DNA from dead Streptococcus cells entered live cells and altered the live cell's characteristics. The two strains of Streptococcus were visually indistinguishable. Heat treatment of the Streptococcus strains destroyed the DNA molecules.
The term "Superbug" refers to? A. Certain bacteria strain that can grow in all kinds of unfavorable conditiions B. Certain bacteria strain is more toxic than all the viruses C. Certain bacteria strain that is resistant to all available antibiotics D. Certain bacteria strain that grows faster than any other strains
In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was beriberi.Symptoms of the disease include weakness and loss of appetite, victims often died of heart failure.Scientists thought the disease might be caused by bacteria. They injected chickens with bacteria fromthe blood of patients with beriberi. The injected chickens became sick. However, so did a group ofchickens that were not injected with bacteria.One of the scientists, Dr. Eijkman, designed a new experiment based on his ownobservations. Before the experiment, all the chickens had eaten whole-grain rice, butduring the experiment, the chickens were fed polished rice. Dr. Eijkman researchedthis interesting case and found that polished rice lacked thiamine, a vitamin necessaryfor good health.1. State the question or problem that Dr. Eijkman investigated. 2. What was the original hypothesis? 3. What was the manipulated (independent) variable and the responding (dependent) variable? 4. Write a…
What was the key finding from Griffith’s experiments using live and heat-killed pathogenic bacteria? a. Bacteria with a smooth coat could kill mice. b. Bacteria with a rough coat are not lethal. c. DNA is the genetic material. d. Genetic material can be transferred from dead to live bacteria.
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