There are 10 passport offices in the city of Phoenix where citizens of the United States can apply for a new passport. The majority of facilities are located at local post offices. An acceptance agent at these locations will receive your application form and supporting documents, administer an oath and witness the signing of the form.
backcross. in experimental genetics, union between a heterozygote of the first generation and one of its parents or an organism genetically identical to one of its parents. double backcross the mating between a double heterozygote and a homozygote.n experimental genetics, union between a heterozygote of the first generation and one of its parents or an organism genetically identical to one of its parents. double backcross the mating between a double heterozygote and a homozygote.
Above: A telegraph register unit, made in Utica, NY by the Chubbuck Co. Above: A duplex key or double speed key, a device that has a contact on both sides of the key arm. In April, 2014 we received the following comment: The double speed key was invented and offered as an alternative to the straight key. Telegraphers using a straight key over a long period of time developed Carpal Tunnel syndrome. The double speed key was a SIDESWIPER and often referred to as a cootie key.