WorksheetsDNA Structure Quiz
Total questions: 25
Worksheet time: 27mins
What shape is DNA?
A single helix
A crstyal
A double helix
Primary Structure
A scientist analyzes a DNA molecule and discovers that 25% of its nitrogenous bases are Cytosine. How many bases must be Guanine?
0% Guanine
25% Guanine
50% Guanine
75% Guanine
Who developed the double-helix model of DNA?
Watson & Crick
Avery
Hershey & Chase
Franklin
Who took a picture of DNA using X-ray diffraction?
Rosalind Franklin
Watson & Crick
Oswald Avery
Hershey & Chase
Who discovered that A = T and C = G?
Chargaff
Franklin
Watson & Crick
Griffith
The image shows a sequence of DNA
It is correct, because it shows all of the bases paired correctly.
It is correct, because it shows one strand is an exact copy of the other
It is inaccurate, because the bases are not correctly paired.
It is inaccurate, because it only shows one strand of the DNA molecule
If we were able to zoom in on a piece of DNA, what type of chemical bond would be seen BETWEEN the strands of DNA?
Covalent bond
Hydrogen bond
Ionic bond
van der Waals forces
If we were to pick apart a piece of DNA, what type of chemical bond would be found WITHIN a strand of that DNA?
Covalent bond
Hydrogen Bond
Ionic Bond
van der Waals forces
Which components bond with adenine in a section of DNA?
1, 3, 5, AND 6
3 AND 5
2 AND 4
3,4,7 AND 8
What #'s represent the genetic code?
1,2,3,4
5,6,7,8
1,3,5,7
2,4,6,8
What #'s make up the backbone of DNA?
1 and 2
3 and 5
1 and 3
6 and 8
Which letters collectively make up a nucleotide. Select all that apply
W
X
Y
None
Which letter represents the phosphate group on the DNA strand?
X
Y
W
Z
Which letter represents the deoxyribose sugar on the DNA strand?
X
Y
W
Z
Which letter represents the nitrogen base on the DNA strand?
X
Y
W
Z
How many TOTAL NUCLEOTIDES are there in the DNA molecule pictured?
5
10
2
20
If one strand of a DNA molecule has the following order of bases, what will be the correct order of bases on the complementary (matching) strand?
AATTGGCC
AATTGGCC
TTAACCGG
GGCCAATT
GACTGACT
Pentose sugar
