In this situation, it is a straightforward matter to cross one of the two strains to N2 males (or to generate a homozygous male stock from one of the mutant strains), and then cross the resultant heterozygous males to the second mutation to generate the a/+; b/+ trans-heterozygote.
Campbell County, Kentucky. Campbell County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 90,336. Its county seats are Alexandria and Newport. The county was formed on December 17, 1794, from sections of Scott, Harrison, and Mason Counties and was named for Colonel John Campbell (1735â1799), a Revolutionary War soldier and Kentucky legislator.
Pendleton County is located in the beautiful rolling hills of Northern Kentucky about half way between Cincinnati, Ohio to the north and Lexington, Kentucky to the south.It is spread over 280 square miles and has an abundance of hunting, fishing and boating opportunities.endleton County is also home to Kincaid Lake State Park. Kincaid has 850 acres to explore and offers camping, golfing, swimming and fishing with more pounds of largemouth bass per acre than any other lake in the state.