The weak D phenotype is thought to arise from several mechanisms. Which one of t
ID: 314143 • Letter: T
Question
The weak D phenotype is thought to arise from several mechanisms. Which one of the following statements is false?
C gene is in trans position to D gene, this results in a weakening influence on the D gene, examples CDe/Cde and cDe/Cde.
Weak D antigen is genetically transmitted. This can occur rarely in R1 and R2 genotypes in caucasians. Also occurs in the Ro genotype in certain racial groups more commonly.
The D antigen consists of multiple pieces (is a mosaic). Occasionally one or more of these pieces is missing. The red cells are said to have a partial D.
D deletion genes gives rise to weakened expression of D antigen.
Rh null cells lack:
MNSs antigens.
Lewis antigens.
Normal oxygen-carrying capacity.
Rh antigens.
There are two closely related and closely linked genes.
Enzyme techniques, in conjunction with an IgM anti-D.
Increasing the time for the incubation of the saline phase.
Performance of an IAT using an IgG anti-D.
Don't need to do it in a blood bank.
C gene is in trans position to D gene, this results in a weakening influence on the D gene, examples CDe/Cde and cDe/Cde.
Weak D antigen is genetically transmitted. This can occur rarely in R1 and R2 genotypes in caucasians. Also occurs in the Ro genotype in certain racial groups more commonly.
The D antigen consists of multiple pieces (is a mosaic). Occasionally one or more of these pieces is missing. The red cells are said to have a partial D.
D deletion genes gives rise to weakened expression of D antigen.
Explanation / Answer
The weak D phenotype is thought to arise from several mechanisms. Which one of the following statements is false?
D deletion genes gives rise to weakened expression of D antigen.
Rh null cells lack:
Rh antigens.
There are two closely related and closely linked genes.
Enzyme techniques, in conjunction with an IgM anti-D.
Increasing the time for the incubation of the saline phase.
Performance of an IAT using an IgG anti-D.
Don't need to do it in a blood bank.
Last one is an incomplete question
D deletion genes gives rise to weakened expression of D antigen.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.