#Question id: 27100
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 4166
#Unit 3. Fundamental Processes
At the ribosome the template mRNA is translated in the __ direction, while the protein is synthesized in the __ direction.
#Question id: 4089
#Unit 3. Fundamental Processes
An investigator incubates an unprocessed RNA molecule containing an intron in an extract absent of any protein. Correct splicing of the RNA is observed, but only when guanosine is present. What can the investigator conclude about the RNA molecule?
a. It contains a ribozyme.
b. Self-splicing has occurred.
c. It contains a group II intron.
d. It contains a group I intron.
#Question id: 11317
#Unit 10. Ecological Principles
Which of the following phenomena emphasizes the indirect effects of consumer-resource interactions extended through additional trophic levels of the community?
#Question id: 28384
#Unit 5. Developmental Biology
Location of the involuting marginal zone cells of amphibian gastrulation is called___