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Worksheets100 DNA History Summer 2021
Total questions: 11
Worksheet time: 13mins
Name
Class
Date
1.
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
2.
Rosalinda Franklin discovered DNA was ________________.
a)
square
b)
spiral
c)
circular
d)
rectangular
3.
What does a Double Helix look like?
a)
Twisted ladder
b)
Upside down ladder
c)
Sideways ladder
d)
Double circle
4.
Who used x ray diffraction to see DNA?
a)
Watson
b)
Chargaff
c)
Franklin
d)
Crick
5.
Who built models of DNA and said it looked like a twisted ladder (double helix)?
a)
Franklin
b)
Sunny and Cher
c)
Chargaff
d)
Watson and Crick
6.
Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.
a)
DNA
b)
protein
c)
RNA
d)
glucose nucleic acid (GNA)
7.
How did Rosalind Franklin's photo 51 affect the work of Watson and Crick?
a)
It was used to determine the physical structure of DNA
b)
It was used to identify the four bases that make up DNA
c)
It was used to determine the theory of independent assortment
d)
It was used to show DNA was the molecule of inheritance
8.
Franklin used x-ray crystallography to determine the shape of the DNA molecule is
a)
a cloverleaf
b)
a braided rope
c)
a pleated sheet
d)
a twisted ladder
9.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
10.
The structure of DNA was discovered in ___________________.
a)
1953
b)
1965
c)
1900
d)
1980's
11.
Who proposed the first model of the structure of DNA that turned out to be wrong?
a)
Linus Pauling in California
b)
Watson and Crick in England
c)
Rosalind Franklin in England
d)
Chargaff in New York
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