DNA Structure and Replication

Flashcard
•
Science
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the three parts of a nucleotide?
Back
A nucleotide is made up of a sugar, a phosphate group, and a nitrogenous base.
2.
FLASHCARD QUESTION
Front
Which type of bond joins nitrogenous bases in DNA?
Back
Nitrogenous bases are joined by hydrogen bonds.
3.
FLASHCARD QUESTION
Front
If a DNA molecule is 18% Guanine, what percentage of Cytosine does it contain?
Back
18% Cytosine, 32% Adenine, 32% Thymine.
4.
FLASHCARD QUESTION
Front
What does it mean when DNA replication is described as semi-conservative?
Back
It means that each new DNA molecule consists of one old (parent) strand and one new strand.
5.
FLASHCARD QUESTION
Front
Which nitrogenous base does Guanine bond with?
Back
Guanine bonds with Cytosine.
6.
FLASHCARD QUESTION
Front
What are the four nitrogenous bases found in DNA?
Back
Adenine, Thymine, Cytosine, and Guanine.
7.
FLASHCARD QUESTION
Front
What is the role of DNA polymerase in DNA replication?
Back
DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.
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