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BIOS 260 (genetics) Exam 1-Test Questions and Answers
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BIOS 260 (genetics) Exam 1-Test Questions and Answers
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BIOS 260 (genetics) Exam 1-Test Questions and AnswersAvery experiment: Hereditary material is DNA Correct Ans-Continuation of Griffith
experiment, Living R form and heat killed S form
How did they prove the Avery experiment? Correct Ans-DNAase
What was a flaw in the Avery experiment that delayed acceptance in the scientific
community? Correct Ans-
Hershey and Chase experiment: genes are composed of DNA Correct Ans-performed a
pulse-chase experiment, hereditary information injected into the bacteria specifying new
generation of virus was indeed DNA and not protein. Used sulfur and phosphorus to
differentiate between DNA and protein.
In the Hershey and Chase experiment how did they distinguish DNA from proteins and other
macromolecules? Correct Ans-Using Sulfur 35 and Phosphorus 32
, BIOS 260 (genetics) Exam 1-Test Questions and Answers
Why was the Hershey and Chase experiment important to providing convincing evidence that
DNA was the genetic material? Correct Ans-because it allowed for separation of protein
and DNA
What was the data and knowledge that allowed Watson and Crick to formulate their double
helix model? Correct Ans-1. Hershey and Chase experiment (DNA is genetic material)
2. Chargaff experiment A=T and C=G
3. Franklin X-Ray structure
4. Helical structure
Double helix Correct Ans-the shape that two linear strands of DNA assume when bonded
together
antiparallel structure Correct Ans-
distances between bases Correct Ans-
turns Correct Ans-
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