A researcher is studying the integral membrane protein "mysteriase" and chooses to perform an experiment similar to that performed by Frye and Edidin. The researcher fuses a mouse cell expressing mysteriase with a human cell. The fused cell is incubated at 37?C prior to being cooled to 0?C and labeled with a fluorescent antibody against mysteriase. When observed with a fluorescent microscope,
mysteriase is observed to remain on one side of the fused cell. What is the most likely explanation for this surprising observation?
A. Mysteriase rigidifies the plasma membrane
B. There is an error in the experimental procedure because this result is impossible
C. Mysteriase is bound to the cytoskeletal filament
D. Mouse cells are less fluid than human cells
E. Mysteriase is a flippase enzyme that enhances lipid flip-flop rather than lipid lateral movement
C. Mysteriase is bound to the cytoskeletal filament
You might also like to view...
The __________ (nematodes) have an unsegmented
body, a cuticle that is molted, a complete gut, and a false coelom. Fill in the blank(s) with the appropriate word(s).
Which of the following immune system cells produce histamine?
A) T cells B) Macrophages C) Mast cells D) Neutrophils E) B cells
Which of the following statement is TRUE about transcription?
a. Transcription in prokaryotes does not differ from transcription in eukaryotes. b. Prokaryotes carry out transcription in the cytosol, whereas eukaryotes carry out transcription in the nucleus. c. Eukaryotes use RNA polymerase and prokaryotes do not. d. Prokaryotes synthesize double stranded RNA and eukaryotes do not. e. Eukaryotes synthesize double stranded RNA and prokaryotes do not.
Which of the following was not one of Mendel's main inferences from his research?
A) The genetic material elements come in pairs. B) Genes are lengths of DNA. C) The basic units of genetics are material elements. D) The genetic material elements separate during the formation of gametes. E) The genetic material elements can retain their character through many generations.