Recombinant DNA Technology
In gel electrophoresis, DNA molecules migrate from __________ to __________ ends of the gel.

positive to negative
basic ... acidic
long ... short
negative ... positive

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Recombinant DNA Technology
Knockout mice are created by

infecting the mouse with a retrovirus
creating a chimera by fusing cells from two different cell lines
transfecting embryonic stem cells with an altered gene sequence
mutagenizing a mouse and selecting for mutant offspring

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