Huntington's disease is a genetic disorder that can result in memory loss and abnormal body movements. huntington's disease results from a defective gene (h) that is dominant to the allele that produces normal function (h). this means i. if someone is heterozygous for huntington's disease, then he/she will be a carrier but will not have the disease. ii. if a child has huntington's disease, then at least one of his/her parents has the disease. iii. if two parents do not have huntington's disease, then their children will not have the disease. i only

2 is right cause u need at least one dominant trait so u need it from one of the parents

Iwould suggest the myers-briggs type indicator because the railroad unions are looking for which are focused introverts. the mbti was designed to provide a lot of information about what a person likes and what their personality based on the four-dimension scale. also for an employer it has been extremely to predict how an employee would act in a professional setting. this is what the railroad unions are looking for. they want the railroad workers to be focused and skillful to ensure the safety of everyone around them. but the other assessments don't match the criteria for the unions. like the measure disorder, emotions and self-esteem while the rorschach and tat tests are both projective tests that mainly measure someone’s personality. also, because this job is not easy, it is vital to make sure the employers are hiring the right people for the job.