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Molecular Genetics
DNA and RNA
10
Biology
12th Grade
02/13/2008

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Cards

Term
Continuity of Life
Definition
succession of offspring that share structural similarities with those of their parents
Term
Restrictive Enzymes
Definition
Enzyme from bacteria that recognizes a specific DNA sequence and cuts that DNA at that seqence
Term
Recombinane DNA Technology
Definition
Cutting DNA from one genome and placign the DNA into another genome
Term
Gel Electrophoresis
Definition
DNA fragmens are applied to a gel, electricity is used, smaller fragments move quickly, this creates bands
Term
Proteins
Definition

Made from amino acids

each has a specific sequence

unique shape

If one amino acid is missing or different, it is different protein with a different shape and a different function

Term
Chromosomes
Definition

50% DNA 50% Protein

Made from numerous chromatin threads, each containing DNA and proteins

Each contains many genes which are blueprints for each cell

Term

Structure of DNA

Definition

Has phosphate, sugar, and nitrogen base.

2 long chains of nucleotides which connect by hydrogen bonding and twist around

Term
Stages of Mitosis
Definition

90% Interphase (growth of cell and DNA replication)

10% Mitosis (PMAT)

 

Term

What happens in PMAT

Definition

Prophase-form chromosomes made of 2 chromatids held together by centromere. Spindle fibers appear.

Metaphase-Spindle fibers attach to chromosomes and line up in middle of cell

Anaphase-Spindle fibers contract and bring chromatids towards centriole

Telophase-cell splits into 2 and nuclear membrane forms

Term
How do you clone?
Definition
Ennucleate egg cell before cell is specialized. Take nucleus of another cell and add it into the egg. Allow cell divisions(Blastocyst). Place in sergit
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