Multiple Choice
What was Rosalind Franklin's contribution to Watson and Crick's discovery of the DNA structure?
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14. DNA Synthesis
Discovering the Structure of DNA
Multiple Choice
Which of the following correctly describes the components of DNA?
A
DNA is composed of amino acids linked by peptide bonds.
B
DNA is composed of nucleotides, each containing a sugar, a phosphate group, and a nitrogenous base.
C
DNA is composed of carbohydrates and lipids forming a single-stranded structure.
D
DNA is composed of lipids and proteins forming a double helix structure.
Verified step by step guidance1
Understand that DNA is a type of nucleic acid, which is a macromolecule essential for all known forms of life.
Recognize that the basic building blocks of DNA are nucleotides.
Each nucleotide in DNA is composed of three components: a sugar molecule (deoxyribose), a phosphate group, and a nitrogenous base.
The nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).
DNA forms a double helix structure, where two strands of nucleotides are linked by hydrogen bonds between complementary bases (A with T and C with G).
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