SBB Genetic, Rh and RBC QUESTIONS AND ANSWERS

SBB Genetic, Rh and RBC membrane dCE - Answer- ry DCE - Answer- RZ Hardy Weinberg equation - Answer- Used to calculate allele and genotype frequencies in a population when the frequency of one genetic trait is known HLA antigens - Answer- Certain characteristics of blood group and ____________ antigens make them useful tools for parentage analysis Direct exclusion, indirect excursion - Answer- Assuming maternity is correct, paternity can be excluded in one of two ways Genetic markers present in the child but is absent from the mother and alleged father - Answer- Direct exclusion Child lacks a genetic marker that alleged father (given his observed phenotype) must transmit to his offspring - Answer- Indirect exclusion Example of direct exclusion - Answer- If the child is blood group B mother is blood group O Alleged father is group O what kind of exclusion is this, direct or indirect HLA antigens are inherited as haplotypes - Answer- HLA antigens are inherited as _______________ This is an example of indirect exclusion It's indirect because we presume the father is JK (b+b+) - Answer- If the child is Jk(a+b-) Mother Jk(a+b+) alleged father is Jk(a-b+) Is this an example of direct or indirect exclusion? Silent gene - Answer- Do not overlook the possibility of a _______________ when solving genetic problems Paternity index (PI) - Answer- Chance that the AF is the biologic father compared to the chance that a random man is the father Biologic father =genetically proven father AF = alleged father Random man =untested man of same racial background - Answer- As related to paternity calculations define Biologic father