Concept explainers
Introduction:
Many scientists performed different experiments to know that which macromolecule is the source of genetic information in any cell. Work of Fredrick Griffith, Avery, Hershey, and Chase helped in the discovery of DNA as genetic material. Griffith studied two strains of Streptococcus pneumonia. One strain is sugar-coated named Smooth (S) strain which causes pneumonia another strain is non-coated and does not cause pneumonia, known as called Rough(R) strain.
Answer to Problem 5A
Correct answer:
The correct answer is option (C) Bacteria exposed to DNA can incorporate the DNA and change
Explanation of Solution
Explanation/justification for the correct answer:
Griffith’s transformation experiment demonstrated the change of rough strain bacteria into smooth strain bacteria. The disease-causing factor was passed from the killed S bacteria to live R bacteria.
Explanation for incorrect answer:
Option (A) DNA is the genetic material in the Virus: Hershey and Chase radioactive labeling experiment demonstrated that DNA is the genetic material in the Virus.
Option (B) The structure of DNA is a double helix: Watson and Crick, with the help of Wilkin’s and Franklin’s X-ray diffraction data, proposed the DNA double helix structure.
Option (D) The amount of thymine equals the amount of adenine in DNA:Erwin Chargaff analyzed the amount of nitrogen base in DNA. Chargaff’s rule: C=G, T-A.
Chapter 12 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Campbell Biology (11th Edition)
Microbiology: An Introduction
Human Anatomy & Physiology
Fundamentals of Anatomy & Physiology Plus Mastering A&P with eText - Access Card Package (10th Edition) (New A&P Titles by Ric Martini and Judi Nath)
Becker's World of the Cell (9th Edition)
Essentials of Genetics (9th Edition) - Standalone book
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education