Biochemistry Quizzes  

Nucleotides Quiz 3

1- Identify this general structure:
 
Bases
Nucleotides    
Nucleosides
Purines
Pyrimidines

2- Are pyrimidines in nucleic acids
A and U
G and C
A and G
C and U

3-
Adenine
Guanine
Uracil
Thymine

4- Is the ribonucleotide of guanine
Guanosine
Guanylate
Deoxyguanosine
Deoxyguanylate

5- Which statement is true:
Deoxyribonucleotides are synthesized from modified ribonucleotides
Ribonucleotides are synthesized from modified deoxyribonucleotides
Ribonucleotides and deoxyribonucleotides are synthesized by completely different pathways
All of the above are true, as there are several alternative pathways

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Answers:

1- Identify this general structure:
 
Answer: Pyrimidines

2- Are pyrimidines in nucleic acids
Answer: C and U

3-
Answer: Uracil

4- Is the ribonucleotide of guanine
Answer: Guanylate

5- Which statement is true:
Answer: Deoxyribonucleotides are synthesized from modified ribonucleotides