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Biology 101 Ch. 4
Flashcards for Professor Abu's Biology class
13
Biology
Undergraduate 1
09/14/2012

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Cards

Term
What are Nucleic acids made of?
Definition
Nucleotides
Term
What are nucleotides made up of?
Definition
A sugar, a phosphate group, and a nitrogenous base
Term
What is a sugar composed of?
Definition
A carbonyl group and a hydroxyl group
Term
What is Ribose?
Definition
A 5-Carbon sugar. Has OH
Term
What is deoxyribose?
Definition
A 5-Carbon sugar, has no OH, just H
Term
What are the purines?
Definition
Adenine and Guanine
Term
What are the Pyrimidines?
Definition

Cytosine and Uracil in RNA

Thymine in DNA

Term
How do nucleic acids form?
Definition
When the phosphate group of a nucleotide group combines with a hydroxyl group of the sugar.
Term
What is the bonding called for nucleotides?
Definition
Phosphodiester bonds
Term
What kind of bonds form between nitrogenous bases?
Definition
Hydrogen bonds
Term
How many bonds are between Guanine and Cytosine?
Definition
3
Term
How many bonds are bonding Uracil and Adenine?
Definition
2
Term
How many strands are used in forming RNA?
Definition
one
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