WorksheetsDiscovering DNA Review Quizizz
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
Which of the following terms refers to a segment of DNA the controls the expression of a trait?
a)
Chromosome
b)
Chromatid
c)
Gene
d)
Histone
2.
Who discovered the process of transformation while trying to create a vaccine against bacterial pneumonia?
a)
Griffith
b)
Avery
c)
Hershey and Chase
d)
Watson and Crick
3.
What organism was Griffith using when he discovered that a harmless strain of bacteria could transform into a lethal strain of bacteria?
a)
pea plants
b)
fruit flies
c)
bacteriophages
d)
mice
4.
Who proved that DNA was the transforming factor?
a)
Griffith
b)
Avery
c)
Chargaff
d)
Franklin
5.
What did Avery use to destroy proteins, lipids, and carbohydrates to show that DNA was the transforming factor?
a)
Bacteriophages
b)
X-ray diffraction
c)
Enzymes
d)
Radioactive isotopes
6.
Which scientists used viruses and radioactive isotopes to definitively prove that DNA, and not protein, was the molecule of heredity?
a)
Griffith and Avery
b)
Chargaff and Franklin
c)
Watson and Crick
d)
Hershey and Chase
7.
Which two radioactive isotopes were used to label the DNA and protein components of viruses called bacteriophages?
a)
Nitrogen and Phosphorus
b)
Phosphorus and Sulfur
c)
Nitrogen and Sulfur
8.
Which scientist discovered that in any sample of DNA the amounts of adenine and thymine were always equal and the amounts of guanine and cytosine were always equal?
a)
Chargaff
b)
Avery
c)
Griffith
d)
Franklin
9.
Which scientist used a technique called X-ray diffraction to study the structure of the DNA molecule?
a)
Watson and Crick
b)
Hershey and Chase
c)
Franklin
d)
Chargaff
10.
Which scientists built a 3-D model of the DNA double helix?
a)
Hershey and Chase
b)
Watson and Crick
c)
Chargaff and Franklin
d)
Griffith and Avery
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