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Kailey S.
Graduate Student Tutor... Soon to be Medical Student
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Biomedical Science
TutorMe
Question:

A patient presents to the clinic for testing. The test results show that she has a mutation resulting in the inactivation of RAG genes. What type of immunologic cells would be absent in this patient?

Kailey S.
Answer:

With the absence RAG genes, there would be an absence of both B and T cells within the patient.

Biochemistry
TutorMe
Question:

Alanine is the second simplest amino acid. Alanine scanning involves mutating certain amino acids in a protein to alanine. Why is this process very valuable to biochemists?

Kailey S.
Answer:

This process allows protein structure and function to be probed by biochemist. Alanine is chemically simple and so by replacing other amino acids of a protein with alanine, it may be deduced what role these replaced residues play (either functionally or structurally).

Biology
TutorMe
Question:

Why do humans get dizzy?

Kailey S.
Answer:

Humans get dizzy when the brain receives conflicting signals from different sensors. This occurs within the vestibular system, an intricate network of fluid-filled channels found in our inner ear and is responsible for our perception of gravity and motion.

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