Questions and Answers
What is a nucleotide?
A nucleotide is a basic building block of DNA.
What is a nucleotide composed of?
1 Phosphate, 1 5-sided Sugar, 1 Nitrogen Base.
How many different variants of nitrogen bases are there?
There are 4 different variants.
What is the name of the 5-sided sugar in a DNA nucleotide?
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What do the single ring nitrogen bases look like?
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What do the double ring nitrogen bases look like?
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What can Adenine only join with?
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What can Guanine only join with?
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Study Notes
Nucleotide Basics
- Nucleotides serve as the fundamental units in the structure of DNA.
Composition of Nucleotides
- Each nucleotide consists of a phosphate group, a five-sided sugar (deoxyribose), and one nitrogen base.
Nitrogen Base Variants
- There are four unique nitrogen base variants in DNA:
- Two are purines (double-ringed): Adenine (A) and Guanine (G).
- Two are pyrimidines (single-ringed): Thymine (T) and Cytosine (C).
Sugar Component
- The five-sided sugar found in DNA nucleotides is deoxyribose.
Characteristics of Nitrogen Bases
- Single-ring nitrogen bases: Thymine (T) or Cytosine (C).
- Double-ring nitrogen bases: Adenine (A) or Guanine (G).
Base Pairing Rules
- Adenine specifically pairs with Thymine (A-T).
- Guanine exclusively pairs with Cytosine (G-C).
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Description
Explore the essentials of nucleotides, the fundamental building blocks of DNA, through this informative flashcard quiz. Learn about their structure, components, and the variations in nitrogen bases. Perfect for biology students looking to reinforce their understanding of genetic material.
