WorksheetsStructure of DNA Formative
Total questions: 10
Worksheet time: 7mins
Name
Class
Date
1.
What shape best describes DNA
a)
helix
b)
double helix
c)
triple helix
d)
circular
2.
The "backbone" of DNA consists of
a)
nitrogen base, phosphate
b)
sugar (deoxyribose) and phosphate
c)
sugar (ribose) and phosphate
d)
adenine, thymine, cytosine, guanine
3.
adenine, guanine, cytosine, and thymine are known as
a)
sugars
b)
phosphates
c)
lipids
d)
nitrogen bases
4.
How many different varieties of nitrogen bases are used to build DNA
a)
1
b)
4
c)
8
d)
12
5.
adenine pairs with
a)
guanine
b)
thymine
c)
cytosine
d)
adenine
6.
guanine pairs with
a)
cytosine
b)
thymine
c)
adenine
d)
guanine
7.
What would be the complementary strand of DNA if you were given this sequence
AACTGC
AACTGC
a)
AACTGC
b)
TTGACG
c)
GCAGTT
d)
GATCAT
8.
The building blocks of DNA are known as
a)
nucleic acids
b)
nucleotides
c)
nitrogen bases
d)
amino acids
9.
One nucleotide is made of
a)
a sugar, phosphate, and a base (A,T,C, or G)
b)
a DNA, RNA, and Protein
c)
adenine, guanine, cytosine, and a thymine
d)
there's no way to know
10.
How do you think DNA replicates (makes a copy) of itself?
a)
it can't
b)
it unzips, and new strands are added
c)
it all comes apart and two new strands are built
d)
we really don't know how this works
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