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DHB 7
DNA recombination
8
Biochemistry
Graduate
09/27/2010

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Term
In general, where does recombination usually occur?
Definition
at regions of homology
Term
During what type of cell division does recombination often occur and what is it called?
Definition
During meiosis have crossing over
Term
What is equal vs unequal crossing over?
Definition
Equal crossing over is like exchange of the same material. Unequal crossing over is unequal sharing of DNA=bad mutations.
Term
What is gene therapy?
Definition
remove bad gene and replace it with a new one.
Term
What is illegitimate recombination?
Definition
Gene is inserted in the wrong place. (pretty common in gene therapy)
Term
What are the three main problems with gene therapy?
Definition
The size of the gene you have to put in, gene silencing by the cell itself (so it wouldn't work), insertional mutagenesis...you cause other mutations/problems/oncogenesis by inserting in the wrong place. Also, viral vectors can causes immune response and death.
Term
What is the point where DNA's interact called?
Definition
The cross-over point
Term
How does hemophilia A (factor IIIV deficiency) happen?
Definition
There is an inverted repeat of the factor IIIV gene. It likes to bind to itself by complementarity. If you get crossing over, gene oriented the wrong way= bad news bears.
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