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. Author manuscript; available in PMC: 2020 Jul 11.
Published in final edited form as: Methods Mol Biol. 2019;1874:191–210. doi: 10.1007/978-1-4939-8831-0_11

Table 1.

Summary of targeting experiments for the first loxP site

Target site No. of embryos injected/implanted Mice weaned No. of loxP carrier mice Targeting efficiencya
Six-Up 140/75 22 7 7/22 (32%)
Six-In 144/99 32 22 22/32 (69%)
a

Targeting efficiency is defined as total numbers of mice that have correctly targeted loxP over total numbers of founder mice