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DNA Double Helix Complementary Sequences Quiz

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DNA Double Helix Complementary Sequences Quiz

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Questions and Answers

What is the convention for writing DNA sequences?

From phosphate end to hydroxyl end

From left to right

From 3' end to 5' end

From 5' end to 3' end (correct)

What is the functional group attached to the 3' carbon of deoxyribose in a nucleotide?

Phosphate

Amino

Carboxyl

Hydroxyl (correct)

What is the molecular weight of deoxyadenosine 5'-phosphate?

347.2

267.2

331.2 (correct)

135.1

What is the classification of adenine and guanine in DNA?

Purines Signup and view all the answers

What is the type of linkage between nucleotides in a polynucleotide?

Phosphodiester Signup and view all the answers

What is the ionization state of hydroxyls bound to phosphate at physiological pH?

Ionized Signup and view all the answers

What is the direction of base pairing in DNA?

Purine-pyrimidine Signup and view all the answers

What is the structure of adenine and guanine derived from?

A double-ringed structure Signup and view all the answers

What is the functional group attached to the 5' carbon of deoxyribose in a nucleotide?

Phosphate Signup and view all the answers

What is the classification of cytosine and thymine in DNA?

Pyrimidines Signup and view all the answers