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DNA
Test Description: DNA structure test
Instructions: Answer all questions to get your test result.
1) What is the shape of DNA?
A
double ladder
B
stair case
C
single helix
D
double helix
2) How do the bases in DNA pair?
A
T-C A-G
B
A-C T-G
C
C-A T-G
D
A-T C-G
3) What bases are purines?
A
guanine and thymine
B
adenine and guanine
C
adenine and cytosine
D
thyamine and cytosine
4) What bases are pyrimidines?
A
adenine and cytosine
B
guanine and thymine
C
thyamine and cytosine
D
adenine and guanine
5) What type of bonds hold the bases together?
A
covalent bonds
B
hydrogen bonds
C
strong bonds
D
ionic bonds
6) What type of bonds are between the sugar and phosphate
A
hydrogen
B
ionic
C
covalent
D
weak
7) What protein does DNA wrap around?
A
catalyst
B
enzyme
C
non-histone
D
histone
8) How long is a strand of DNA that is unwound?
A
6 foot
B
1nm
C
4 inches
D
1 foot
9) Where is DNA located?
A
cytoskeleton
B
centrioles
C
in the nucleus of living things
D
cytoplasm
10) What are the parts of a nucleotide?
A
sugar protein enzyme
B
lipid fat oil
C
carb, protein, amino acid
D
sugar phosphate base
*select an answer for all questions
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