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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.
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Biology, 22.06.2019 04:50
How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.
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Biology, 22.06.2019 10:30
19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase
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Biology, 22.06.2019 11:30
_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous
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Sea turtles laying hundreds of eggs in the sand is an example of?
(4 components of natural selectio...
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Mathematics, 14.12.2019 06:31