Claire lost the ability to completely empty her bladder following a stroke, and a nurse inserts a catheter into the open end of her urinary tract each day to remove the urine. Into what structure does the nurse insert the catheter?
A. collecting duct
B. ureter
C. bladder
D. urethra
E. renal pelvis
F. nephron
D. urethra
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Early in development, female mammalian embryos convert an X chromosome in each cell into an inactivated form. What is this form called?
a. neutral X b. odontoid process c. Barr body d. axial body
When do homologous chromosomes undergo recombination?
a. during anaphase b. during prophase c. during telophase d. during metaphase
Protein X contains four transmembrane domains, a short N-terminus and a long C-terminus. Following protein synthesis, the N-terminus of the protein faces the lumen (the inside) of the ER. After protein X is transported to the cell surface via exocytosis, you would expect the N-terminus of protein X to be
A. extracellular. B. in the lipid bilayer of the plasma membrane. C. in the lumen. D. cytoplasmic.
A disease in which the causative agent remains inactive for a time before producing symptoms is referred to as
A) subacute. B) subclinical. C) latent. D) zoonotic. E) acute.