Which of the following is NOT found in the extracellular matrix of animal cells?
A. cellulose fibers
B. elastin fibers
C. collagen fibers
D. laminin fibers
E. polysaccharide matrix
A
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Referring to Figure 10.17 if necessary, identify which type of cell-cell interaction is most likely to force the products of digestion to be absorbed across microvilli of intestinal cells rather than allowing them to leak between cells
A. gap junctions B. tight junctions C. plasmodesmata D. hemidesmosomes E. desmosomes
When patient tissues are transfected with viruses carrying a needed, normal human gene, the technique is called ________.
A. gene therapy B. DNA fingerprinting C. cloning D. antisense therapy
A great adaptive radiation of mammals began
about ____ million years ago. a. 25 b. 65 c. 95 d. 125 e. 165
Which of the following is treated with cephalosporins because the organism is resistant to penicillin and fluoroquinolones?
A) Mycoplasma hominis B) Haemophilus ducreyi C) Neisseria gonorrhoeae D) Treponema pallidum E) Gardnerella vaginalis