Answers: 2
Biology, 21.06.2019 17:20
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.
Answers: 1
Biology, 22.06.2019 10:00
Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins
Answers: 2
Biology, 22.06.2019 12:30
Which of the following types of reactions would decrease the entropy within a cell? a. dehydration reaction, b. hydrolysis, c. respiration, d. digestion, e. catabolism.
Answers: 2
Biology, 22.06.2019 16:00
Autonomous underwater explorers will be used to gather large-scale ocean information select the best answer from the choices provided ot
Answers: 1
Which adaptation is used by polar bears to maintain internal homeostasis in cold temperatures?
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