Which one of the following is formed by the removal of a carbon (as CO2 ) from a molecule of pyruvate?
A) glyceraldehyde 3-phosphate
B) oxaloacetate
C) acetyl CoA
D) citrate
C
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Which of the following cytoskeletal proteins can be found in prokaryotes?
A) crescentin B) tubulin C) keratin D) vimentin E) actin
Type 1 fucosidosis is a rare human disease. Patients cannot hydrolyze the disaccharide fucose, and as a result have severe neurological decline and die by age 6. The disease is due to a defect in the gene that encodes the lysosomal enzyme that breaks down fucose (?-1-fucosidase), and is inherited in an autosomal recessive manner. Which of the following statements is ACCURATE about Type1
fucosidosis? A. Ff and ff individuals will have the disease B. Ff individuals will have the disease, because anyone with the mutant allele will have the disease C. Ff individuals make enough ?-1-fucosidase to break down fucose and do not exhibit the condition D. Two carriers for Type I fucosidosis have no chance of having a normal child E. Both Ff individuals will have the disease, because anyone with the mutant allele will have the disease AND two carriers for Type I fucosidosis have no chance of having a normal child
Acquired specific immunity involves the response of
A. skin barriers. B. interferon. C. lysozyme. D. B and T lymphocytes. E. mucus membranes.
Which of the following functions is not associated with the lymphatic system?
What will be an ideal response?