Isolating a bacterium of the ________ class would be of high impact due to it only having one cultured representative
A) Alphaproteobacteria
B) Betaproteobacteria
C) Epsilonproteobacteria
D) Zetaproteobacteria
Answer: D
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Recall from the text the example of cell communication in Streptococcus pneumoniae: the rate of DNA uptake by pneumococcal cells increases sharply when they are at high density due to changes in gene expression brought about by signaling between cells
If the pneumococcal cells did not express receptor protein, how would the rate of DNA uptake be affected when the cells reach high density? A. There would be no change in the rate of DNA uptake. B. There would be a larger than normal increase in the rate of DNA uptake. C. There would be a smaller than normal increase in the rate of DNA uptake. D. There would be a decrease in the rate of DNA uptake.
Which of the following is not an example of a smooth muscle?
a. intestinal wall b. wall of large blood vessel c. abdominal body wall muscle d. outer uterine wall e. urinary bladder wall
A Mendelian cross for a three-gene trait is expected to yield ________ F2 genotypes
A) 4 B) 16 C) 27 D) 64 E) 265
Dolphins share synapomorphies with dolphins
_____________________ Indicate whether the statement is true or false.