What were the conclusions of Franklin's work regarding the structure of DNA?
A. It did not have a helical structure
B. The helix had more than one strand
C. The helix contained about 1 bases per turn
D. The helix had only one strand
B
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The components of the second line of defense against microbes may be characterized as
A) responders to invasion. B) passive barriers. C) mechanisms to strengthen the first line of defense. D) detecting the unique features of specific pathogens. E) both passive barriers and detecting specific pathogen features.
____________ convert a cocci to a rod bacterial shape
a. MreB b. crescentin c. FtsZ d. Actin
Eating food contaminated with ________ may result in meningitis in at-risk persons
A) Mycoplasma hominis B) Staphylococcus aureus C) Listeria monocytogenes D) Clostridium perfringens E) Enterococcus faecalis
A vesicle fuses with the plasma membrane and releases its contents to the extracellular fluid. This statement describes _____.
a. facilitated diffusion b. active transport c. simple diffusion d. endocytosis e. exocytosis