Consider the scenario of two scientists conducting an experiment to track what happens to the carbon atoms from CO2 molecules used during the Calvin cycle of photosynthesis
They add a radioactive "tag" to the carbon atoms of the CO2 reactants and then collect the products following the reactions. They analyze the products for their level of radioactivity.
Which product(s) would you expect to be radioactive?
A) Both ATP and water
B) Both water and glucose
C) Glucose only
D) ATP only
E) Water only
C
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tRNA differs from other types of RNA because it _____
a. acts as an enzyme b. is only involved in transcription c. binds to mRNA d. codes for multiple amino acids e. is complexed with a protein
Ribosomes consist of ________ separate subunits that come together as part of the initiation process and dissociate immediately after termination.
A. three B. four C. five D. two
The ancestor to the tetrapods belongs to which class?
A. Actinopterygii B. Cephalaspidomorphi C. Chonrichthyes D. Myxini E. Sarcoptergii
The most primitive digestive tract is seen in
A. insects. B. salamanders. C. nematodes. D. earthworms. E. birds.