What is the structure of DNA?
DNA Structure

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Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
DNA is a double helix made up of two strands that wind around each other, consisting of nucleotides.
2.
FLASHCARD QUESTION
Front
What are the four nitrogenous bases in DNA?
Back
Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
3.
FLASHCARD QUESTION
Front
What is the base pairing rule in DNA?
Back
Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).
4.
FLASHCARD QUESTION
Front
What type of bond holds the nitrogenous bases together?
Back
Hydrogen bonds hold the nitrogenous bases together.
5.
FLASHCARD QUESTION
Front
What is a nucleotide?
Back
A nucleotide is the basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.
6.
FLASHCARD QUESTION
Front
What is the role of DNA in living organisms?
Back
DNA carries genetic information that determines the traits and functions of living organisms.
7.
FLASHCARD QUESTION
Front
How does DNA replicate?
Back
DNA replication involves unwinding the double helix and using each strand as a template to create a new complementary strand.
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