Question

A 10-month-old boy has a history of severe, frequent viral and bacterial infections. He is awaiting a bone marrow transplant. Flow cytometry shows that the lymphocytes lack both the T-lymphocyte and B-lymphocyte receptors, but they express natural killer cell markers. A defect in which of the following best explains this patient's condition? A) Bruton tyrosine kinase B) CD8 antigen C) Complement C2 gene D) Recombinase-activating gene 1 E) Thymus development

Name: a 10 month old boy has a history of severe frequent viral and bacterial infections he is awaiting a bone marrow transplant flow cytometry shows that the lymphocytes lack both the t lymphocyte and b ly
Uploaded: 2023-05-23T22:17:18-08:00
Duration: 1 min 50 s
Channel: Bryan Valdivia
Description: a 10 month old boy has a history of severe frequent viral and bacterial infections he is awaiting a bone marrow transplant flow cytometry shows that the lymphocytes lack both the t lymphocyte and b ly

          A 10-month-old boy has a history of severe, frequent viral and bacterial infections. He is awaiting a bone marrow transplant. Flow cytometry shows that the lymphocytes lack both the T-lymphocyte and B-lymphocyte receptors, but they express natural killer cell markers. A defect in which of the following best explains this patient's condition? 
A) Bruton tyrosine kinase 
B) CD8 antigen 
C) Complement C2 gene 
D) Recombinase-activating gene 1 
E) Thymus development

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Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Bryan Valdivia

05/23/2023

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Flow cytometry shows that his lymphocytes lack both T-lymphocyte and B-lymphocyte receptors, but they express natural killer cell markers. This indicates a problem with the development of both T and B cells, which are crucial for adaptive immunity. A) Bruton Show more…

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A 10-month-old boy has a history of severe, frequent viral and bacterial infections. He is awaiting a bone marrow transplant. Flow cytometry shows that the lymphocytes lack both the T-lymphocyte and B-lymphocyte receptors, but they express natural killer cell markers. A defect in which of the following best explains this patient's condition? A) Bruton tyrosine kinase B) CD8 antigen C) Complement C2 gene D) Recombinase-activating gene 1 E) Thymus development