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TLS Online TPP Program

#Question id: 4944

What is true of the amino acids that might have been delivered to Earth within carbonaceous chondrites?

#XL - T Zoology

  1. They had the same proportion of L and D isomers as Earth does today.

  2. The proportion of the amino acids was similar to those produced in the Miller-Urey experiment.

  3. There were fewer kinds of amino acids on the chondrites than are found in living organisms today.

  4. They were delivered in the form of polypeptides.

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TLS Online TPP Program

#Question id: 27332

#XL - T Zoology

Ribozymes are also termed as
TLS Online TPP Program

#Question id: 925

#XL - Q Biochemistry

If an aerobic organism (e.g., the bacterium E. coli) were fed each of the following four compounds as a source of energy, the energy yield per mole from these molecules would be in the order:
TLS Online TPP Program

#Question id: 11638

#XL - S Microbiology

Which group includes members that are important primary producers in ocean food webs, causes red tides that kill many fish, and may even be carnivorous?
TLS Online TPP Program

#Question id: 12158

#XL - R Botany

Which of the following is correctly described as a primary producer?
TLS Online TPP Program

#Question id: 3019

#XL - S Microbiology

During which phase of growth are bacteria most susceptible to antibiotics?