If an E. coli strain typically has 50 loop domains, how many total base pairs might this bacteria have in its chromosome?
A. 200,000-450,000
B. 5 billion
C. 500-2,000
D. 5,000-20,000
E. 50,000-80,000
Answer: A
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The water vascular system of echinoderms _____
A) functions as a circulatory system that distributes nutrients to body cells B) functions in locomotion and feeding C) is bilateral in organization, even though the adult animal is not bilaterally symmetrical D) moves water through the animal's body during suspension feeding E) is analogous to the gastrovascular cavity of flatworms
The ____ absorb nutrients through their plasma membranes and lack food vacuoles
a. golden algae b. apicomplexans c. dinoflagellates d. diatoms e. red algae
According to kin selection, a man should die to save the life of
A. four grandparents. B. two half brothers. C. one full brother. D. nine cousins. E. one parent.
"Mad Cow disease" is the result of infection of cattle with what type of agent?
A) bacteria B) virus C) viroid D) prion