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.
Newport History Center. 7435 Main Street, Newport, New York 13416. Town of Newport, Herkimer County. is located in one of the historic limestone buildings in the Village of Newport. We collect antique objects, books, documents and genealogical information from 1790 to the present day. The Newport History Center is usually open Monday, Wednesday and Friday from 1:00 to 4:00 p.m.