Podcast
Questions and Answers
What is the primary structure of DNA?
What is the primary structure of DNA?
- Single strand
- Triple helix
- Double helix (correct)
- Linear structure
Which nucleotide does not pair with Adenine in DNA?
Which nucleotide does not pair with Adenine in DNA?
- Cytosine (correct)
- Thymine
- Adenine
- Guanine
What components make up a nucleotide?
What components make up a nucleotide?
- Two sugars and one phosphate group
- A sugar, ribose, and two organic bases
- A lipid, a phosphate group, and one organic base
- A sugar, a phosphate group, and one organic base (correct)
How many base pairs do humans approximately have in their DNA?
How many base pairs do humans approximately have in their DNA?
What is a key feature of the base sequence in DNA?
What is a key feature of the base sequence in DNA?
Flashcards
DNA Structure
DNA Structure
A double helix formed by two complementary strands of nucleotides.
Nucleotide
Nucleotide
The building block of DNA, composed of sugar, a phosphate, and a base.
Base Pairs (DNA)
Base Pairs (DNA)
Adenine pairs with Thymine, Cytosine pairs with Guanine.
Complementary Bases
Complementary Bases
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DNA Base Sequence
DNA Base Sequence
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Study Notes
DNA Structure
- DNA has a double helix structure
- It's composed of four nucleotides
- The order of base pairs (the base sequence) determines genetic information
Nucleotide Composition
- A sugar
- Deoxyribose
- A phosphate group
- One of four bases
Organic Bases
- Adenine (A)
- Thymine (T)
- Cytosine (C)
- Guanine (G)
DNA Single Strand
- Nucleotides link to form a chain
- This chain is called a base sequence
- The base sequence varies between living organisms (genetic fingerprint)
Complementary Bases
- Adenine pairs with Thymine
- Cytosine pairs with Guanine
DNA Double Helix
- DNA is a double helix
- It is formed from two complementary DNA strands
- Humans have approximately 3 billion base pairs in their DNA
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Description
Explore the intricate structure of DNA, including its double helix formation and nucleotide composition. Understand the role of organic bases like adenine, thymine, cytosine, and guanine in storing genetic information. This quiz covers essential concepts related to the building blocks of life.
