Blood Bank - Blood Group Systems Exam Solution Manual Rated A+

Blood Bank - Blood Group Systems Exam Solution Manual Rated A+ 1. What is the most common Rh haplotype among whites? A. Dce B. DCe C. DcE D. dce - Answers B 2. The qualitative differences between A1 and A2 phenotypes includes all of the following EXCEPT: A. The formation of anti-A1 in A subgroups. B. The amount of transferase enzymes. C. The length of the precursor oligosaccharide chains. D. The lack of agglutination of patient red cells with anti-A reagent. - Answers D 3. What ABO phenotype will exist in an individual that inherits an A gene from one parent and a B gene from the other? A. A B. B C. AB D. O - Answers C 4. Which of the following is the most prevalent blood type found in the United States? A. O positive B. A positive C. B positive D. O negative - Answers A 5. What is his MOST likely genotype for a white male who has the following Rh antigens C,c,D,E,e? A. R1r B. R1R2 C. Ror D. r'r" - Answers B 6. The serum from a patient of African-American descent is reactive with all screening and panel cells. Which antibody directed to a high incidence antigen is most likely to be present? A. Anti-Lub B. Anti-Jk3 C. Anti-U D. Anti-Ku - Answers C 7. If the parents are group A and B respectively, what are the possible blood groups of their children? A. A and B only B. A and B and AB only C. A and B and O only D. A and B and AB and O - Answers D 8. What is the most common (highest probability percentage) possible phenotype of the mating between a mother who has an AB genotype and a father who has an AO genotype? A. AB B. B C. A D. O - Answers C 9. Phenotype refers to: A. The genes inherited from each parent B. Opposing antigens produced by genes C. The presence of two or more alleles at a locus D. The expression of traits - Answers D 10. The McLeod phenotype is associated with which of the following antigen systems? A. Rh B. P C. Kell D. MNSs - Answers C 11. In immunohematology, an antithetical relationship exists between M antigen and which of these antigens? A. K antigen B. S antigen C. Lu6 antigen D. N antigen - Answers D 12. Which specific immunodominant sugar is responsible for A (blood group A) antigenic specificity? A. L-fucose B. D-galactose C. N-acetyl-D-galactosamine D. Glucose - Answers C 13. In which group is Type B blood found in higher frequency? A. African Americans B. Caucasians C. Asians D. Hispanics - Answers C 14. Which genotype(s) is/are possible for a mating of an AB mother and an AB father? A. AB only B. AA and BB C. AB, AA, and BB D. All genotypes are possible - Answers C 15. Which one of these Lewis blood group system phenotypes usually produces anti-Lea? A. Le(a+b+) B. Le(a+b-) C. Le(a-b+) D. Le(a-b-) - Answers D 16. Lewis Blood Group System is a human blood group unlike most others. The antigen is produced and secreted by exocrine glands, eventually adsorbing to the surface of red blood cells. Its expression is based on the genetic expression of the Lewis and Secretor genes. Based on the following genotype (Le) (sese), what would you predict the Lewis antigen phenotypic expression to be?