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?
With the absence RAG genes, there would be an absence of both B and T cells within the patient.
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?
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).
Why do humans get dizzy?
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.