
DNA REVIEW
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is DNA?
Back
DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.
2.
FLASHCARD QUESTION
Front
What are the four nitrogenous bases in DNA?
Back
The four nitrogenous bases in DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
3.
FLASHCARD QUESTION
Front
What is the base pairing rule in DNA?
Back
In DNA, Adenine pairs with Thymine (A-T) and Cytosine pairs with Guanine (C-G).
4.
FLASHCARD QUESTION
Front
What is the role of the phosphate group in DNA?
Back
The phosphate group forms the backbone of the DNA structure, linking the sugar molecules together.
5.
FLASHCARD QUESTION
Front
Who proposed the base pairing rule?
Back
The base pairing rule was proposed by Erwin Chargaff.
6.
FLASHCARD QUESTION
Front
What is the significance of Chargaff's rules?
Back
Chargaff's rules state that in any given DNA molecule, the amount of Adenine equals Thymine and the amount of Cytosine equals Guanine.
7.
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.
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