Definition: A dihybrid cross is a breeding experiment between P generation (parental generation) organisms that differ in two traits.
Private duty nursing. Private duty nursing is the care of clients by nurses, whether an RN (Registered Nurse) or LPN/LVN (Licensed Practical Nurse). Most nurses who provide private duty care are working one-on-one with individual clients.
A registry (sometimes called a private duty registry, independent contractor agency or staffing service) is an employment service for home care workers. Registries refer, but do not hire, home care workers. They serve as a middleman, providing families with a list of possible candidates for the job.