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Exam (elaborations)
BIOD 101 Module 4 Problem Set
BIOD 101 Module 4 Problem Set 
● Due No due date 
● Points 5 
● Questions 21 
● Time Limit None 
Compare and contrast purines and pyrimidines and provide examples of each. 
Answer: Purines contain two carbon-nitrogen rings and four nitrogen 
atoms, while the pyrimidines contain one carbon-nitrogen ring and two 
nitrogen atoms. Adenine and guanine are purines, and thymine and 
cytosine are pyrimidines (See section 4.1 in module). 
Describe the structure and arrangement of DNA. 
Answer: DN...
Exam (elaborations)
BIOD 101 Module 4 Exam Portage learning
PopularBIOD 101 Module 4 Problem Set 
● Due No due date 
● Points 5 
● Questions 21 
● Time Limit None 
Compare and contrast purines and pyrimidines and provide examples of each. 
Answer: Purines contain two carbon-nitrogen rings and four nitrogen 
atoms, while the pyrimidines contain one carbon-nitrogen ring and two 
nitrogen atoms. Adenine and guanine are purines, and thymine and 
cytosine are pyrimidines (See section 4.1 in module). 
Describe the structure and arrangement of DNA. 
Answer: DN...