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Biochemistry - Nucleic Acids

@ : Home > Biochemistry > Nucleic Acids > Section 1

Exercise

  • Section 1
"I do not seek. I find."
- Pablo Picasso
1. 

Because DNA is a highly charged polyanion, its stability to heat denaturation

A. does not depend on hydrophobic interactions
B. increases with increasing salt
C. is independent of G - C content
D. decreases with increasing salt

2. 

The sugar in RNA is __________ , the sugar in DNA is __________

A. deoxyribose, ribose
B. ribose, deoxyribose
C. ribose, phosphate
D. ribose, uracil

3. 

Nucleoside is a pyrimidine or purine base

A. covalently bonded to a sugar
B. ionically bonded to a sugar
C. hydrogen bonded to a sugar
D. none of the above

4. 

In gel electrophoresis, what fragments will move most quickly through a gel?

A. Large fragments
B. Small fragments
C. Large genome
D. None of these

5. 

Which pyrimidine base contains an amino group at carbon 4?

A. CytosineB. Thymine
C. UracilD. Adenine



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