To introduce dsRNA into C. elegans, it is enough just to dip the worms into media that includes E. coli containing the dsRNA because __________
A) E. coli infect C. elegans and then the RNA is released
B) E. coli break up into pieces due to the presence of the worms
C) C. elegans feed on the transgenic bacteria
D) C. elegans emit toxins that paralyze the bacteria
E) E. coli emit chemicals that cause pores to open in the nematode body wall
C
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What are molecular clocks? How they can be used to estimate the time of evolutionary divergences?
What will be an ideal response?
Coal is predominantly composed of the remains of:
a. multicellular animals. b. phytoplankton. c. fungi. d. multicellular plants. e. gelatinous zooplankton.
Which of the following is NOT true?
a. Intermediate filaments and actin filaments treadmill b. Intermediate filaments and microtubules have a single monomer c. Intermediate filaments and microtubules have a role in the centrosome d. Two of the above e. None of the above
Between 9 am and 7 pm, the lizard likely used endothermy to maintain a high, stable temperature.
a. true b. false