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Rhesus null (Rhnull) phenotype is caused by the deletion of Rh-associated glycoproteins (RHAG) expression on red blood cells (RBCs). Individuals with Rhnull phenotype have RBCs that do not express any of the Rhesus antigens because they cannot be targeted to the RBC membrane. The absence of the Rh complex alters the RBC shape, increases its osmotic fragility, and shortens its lifespan, resulting in a hemolytic anemia that is usually mild in nature. These patients are at risk of adverse transfusion reactions because they may produce antibodies against several of the Rh antigens.
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What is meant by null vector?
a vector with nothing in it
Explain what is meant by null hypothesis?
The null hypothesis is an hypothesis about some population parameter. The goal of hypothesis testing is to check the viability of the null hypothesis in the light of experimental data. Based on the data, the null hypothesis either will or will not be rejected as a viable possibility.
What is meant by null hypothesis rejected?
It tells us that H1,H0 (alternative )hypothesis is selected
What is reses negative?
If you mean Rhesus - it's a classification in blood groups of a lack of Rhesus anti-bodies.
What is the subset of null set?
The null set. Every set is a subset of itself and so the null set is a subset of the null set.
