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Yoder test 3 - DNA Section
Lamar University Biology 1406 with Dr. Yoder - TEST 3 - DNA section
33
Biology
Undergraduate 1
04/14/2013

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Term
What are the building blocks of nucleic acids?
Definition
Nucleotides
Term
What do Nucleotides consist of?
Definition
A phosphate group, a sugar, and a nitrogenous base.
Term
DNA and RNA are examples of what?
Definition
Nucleic Acids
Term
Where does Transcription happen?
Definition
Nucleus
Term
In DNA what does Adenine always bind with?
Definition
Thymine
Term
What is the backbone of a DNA strand?
Definition
Sugars and phosphate groups
Term
What does guanine bind with in both DNA and RNA?
Definition
Cytosine
Term
What is DNA Replication?
Definition
When a DNA molecule unwinds and each strand is copied resulting in two DNA molecules.
Term
When does DNA Replication happen?
Definition
Prior to cell division
Term
What is the name of the sugar in DNA?
Definition
Deoxyribose
Term
Who designed the first molecular shape of the DNA molecule?
Definition
Watson and Crick
Term
What is a polypeptide chain and what does it consist of?
Definition
Backbone of a protein
Consists of several amino acids bonded together
Term
What is assembled during transcription?
Definition
mRNA
Term
What does mRNA do?
Definition
It takes the instructions from DNA in the nucleus to the ribosome in the cytoplasm to make a protein.
Term
Building blocks of protein
Definition
Amino Acids
Term
When making RNA from DNA what binds with adenine?
Definition
Uracil
Term
What is the sugar in RNA called?
Definition
Ribose
Term
What is the first step in translation?
Definition
Initiation
Term
What happens during the first step of translation(initiation)?
Definition
tRNA and mRNA come together
Term
What are tRNA and mRNA?
Definition
sub-units of the ribosome
Term
what type of RNA is the initiator?
Definition
tRNA
Term
What is transcription?
Definition
When a DNA molecule unwinds part way and the RNA molecule is assembled according to the base paring rules.
Term
Molecular shape of a DNA molecule
Definition
Double Helix
Term
Examples of nitrogenous bases
Definition
Adenine, Thymine, Guanine, Cytosine, and Uracil.
Term
Bonds that hold amino acids together in a protein.
Definition
Peptide
Term
When a protein is assembled according to the code on an mRNA molecule.
Definition
Translation
Term
What brings amino acids to the ribosome during translation?
Definition
tRNA
Term
What is the last step of translation?
Definition
Termination
Term
What happens during the last step of translation(termination)?
Definition
Polypeptide chain, tRNA and mRNA and sub-units of the ribosome all come apart.
Term
Molecule of heredity which contains all the information necessary to do all the reactions of the cell.
Definition
DNA
Term
Second step of translation
Definition
Elongation
Term
What happens in the second step of translation(elongation)?
Definition
Amino acids are put together
Term
What two major components make up a ribosome?
Definition
rRNA and protein
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