試題詳解

24. “The knock-out mice” is an important animal model for biomedical research. One of the most important techniques involving in this transgenic animal’s establishment is_______ .
(A) receptor expression in embryonic stem cell
(B) gene targeting by homologous recombination
(C) gene amplification in embryonic fibroblast cell
(D) technique of chromosome walking
(E) single nucleotide polymorphism analysis