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DNA Notecard Definition
DNA Flashcards
22
Biology
10th Grade
10/05/2015

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Term
Adenine
Definition
The nitrogen base that binds with Thymine.
Term
Anticodon
Definition
The three nitrogen bases found on a tRNA molecule that bind with mRNA.
Term
Codon
Definition
A triplet of nucleotides in the mRNA, which specifies amino acids in the synthesis of protein molecules.
Term
Cytosine
Definition
The nitrogen base that binds with guanined.
Term
Deoxyribose sugar
Definition
The sugar molecule that makes up the backbone of DNA.
Term
Double Helix
Definition
This term in used to describe the structure of DNA, which is sometimes described as a twisted ladder.
Term
Guanine
Definition
The nitrogen base that binds with Cytosine.
Term
Hydrogen bond
Definition
The type of bond found between the nitrogen bases on a DNA molecule.
Term
Messenger RNA
Definition
This molecule is what is used as the coded message for a protein. It is made in the nucleus, then travels to the ribosome to begin making the protein.
Term
Mutation
Definition
A change in DNA.
Term
Nitrogen Base
Definition
These molecules make up the center of the DNA strand. Examples include Adenine and Guanine.
Term
Nucleotide
Definition
The basic building block of a DNA molecule.
Term
Peptide Bond
Definition
The type of bond that forms between two amino acids in a protein.
Term
Polypeptide
Definition
This refers to a molecule that contains many peptide bonds. This can also be used to describe a protein.
Term
Replication
Definition
The process that occurs in the nucleus of cells where you make a new DNA strand.
Term
Ribose Sugar
Definition
The sugar molecule that makes up the backbone of RNA.
Term
Ribosomal RNA
Definition
The molecules that make up the ribosome.
Term
Thymine
Definition
The nitrogen base that binds with Adenine.
Term
Transfer RNA
Definition
The molecule used to transport amino acids to the ribosome.
Term
Transcription
Definition
The process that occurs in the nucleus of a cell where a new strand of messenger RNA is made.
Term
Translation
Definition
The process that occurs at ribosomes when amino acids are linked together to form proteins.
Term
Uracil
Definition
The nitrogen base that replaces Thymine in an RNA strand. (this is only found in RNA)
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