La función del ARNt es muy similar a la de: * A. Un traductor
B. Un mensajero
C. Un arquitecto
D. Una fotocopiadora

The trp operon in e. coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f