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Genetics Final Definitions
Genes to Genomes:Ch 7,8,911,14
14
Biology
Undergraduate 3
11/30/2010

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Term
Nucleic Acid Hybridization
Definition
complementary strands will associate and form double stranded molecules
Term
Restriction Enzymes
Definition
These enzymes recognize and cleave DNA at specific sequences
Term
Blotting
Definition
Allows analysis of a single sequence in a mixture
Term
DNA Cloning
Definition
This allows the isolation and generation of a large number of copies of a given DNA sequence. Isolate/Amplify fragment of DNA
Term
DNA Sequencing
Definition
Determining the array of nucleotides in a DNA molecule
Term
Transformation
Definition
Stably integrating a piece of DNA into the genome of an organism
Term
Genomics
Definition
Analyzing changes in an entire genome
Term
Missense mutation
Definition
alters ONE codon so that it encodes a different amino acid
Term
Silent Mutations
Definition
mutations that do not alter the amino acid sequence.

Mutations that occur in introns and non-genic regions are also silent
Term
Nonsense mutation
Definition
mutation that alters one codon so that it now encodes for a STOP codon
Term
Nonsense suppressor mutation
Definition
mutation that allows the tRNA to recognize a nonsense codon and base pair with it.The gene continues to be transcribed.
Term
Restriction map
Definition
description of the number, type, and distances between Restriction sites on a piece of DNA
Term
Gel electrophoresis
Definition
The length of the DNA can be accurately determined by allowing the charged DNA to run through an agarose gel.

DNA moves towards the Positive electrode.

The rate of migration of a DNA fragment is inversely proportional to its size.
Larger the size, slower its movement.
Term
Plasmids
Definition
Plasmids are naturally occurring circular pieces of DNA in E. coli
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