Bio: cell and molecular ANSWER ALL 1 In the bacterial cell, the trytophan operon
ID: 311222 • Letter: B
Question
Bio: cell and molecular ANSWER ALL1 In the bacterial cell, the trytophan operon encodes the genes needed to synthesize tryptophan. When the concentration of typtophan inside the cell is high: A it inactivates the tryptophan repressor which shuts down the tryptophan operon. B it inactivates the tryptophan repressor allowing transcription of the tryptophan operon. C it activates tytophan repressor which shuts down the tytophan operon.
2 which of the following statements is NOT true about the differences between liver cells and kidney cells in the same organism? A They contain different sets of proteins B they contain different genes C they contain the same genes but express them differently
3 which is not involved in post-transcriptional control? A riboswitch B DNA methylation C RNA interference D microRNA
4 what is a riboswitch? A a small molecule that regulates the translation of specific mRNAs B an mRNA that can regulate its own transcription and translation C a gene regulatory protein that turns on the expression of ribosomal proteins Bio: cell and molecular ANSWER ALL
1 In the bacterial cell, the trytophan operon encodes the genes needed to synthesize tryptophan. When the concentration of typtophan inside the cell is high: A it inactivates the tryptophan repressor which shuts down the tryptophan operon. B it inactivates the tryptophan repressor allowing transcription of the tryptophan operon. C it activates tytophan repressor which shuts down the tytophan operon.
2 which of the following statements is NOT true about the differences between liver cells and kidney cells in the same organism? A They contain different sets of proteins B they contain different genes C they contain the same genes but express them differently
3 which is not involved in post-transcriptional control? A riboswitch B DNA methylation C RNA interference D microRNA
4 what is a riboswitch? A a small molecule that regulates the translation of specific mRNAs B an mRNA that can regulate its own transcription and translation C a gene regulatory protein that turns on the expression of ribosomal proteins Bio: cell and molecular ANSWER ALL
1 In the bacterial cell, the trytophan operon encodes the genes needed to synthesize tryptophan. When the concentration of typtophan inside the cell is high: A it inactivates the tryptophan repressor which shuts down the tryptophan operon. B it inactivates the tryptophan repressor allowing transcription of the tryptophan operon. C it activates tytophan repressor which shuts down the tytophan operon.
2 which of the following statements is NOT true about the differences between liver cells and kidney cells in the same organism? A They contain different sets of proteins B they contain different genes C they contain the same genes but express them differently
3 which is not involved in post-transcriptional control? A riboswitch B DNA methylation C RNA interference D microRNA
4 what is a riboswitch? A a small molecule that regulates the translation of specific mRNAs B an mRNA that can regulate its own transcription and translation C a gene regulatory protein that turns on the expression of ribosomal proteins
Explanation / Answer
1. In bacterial cell,the tryptophan operon encodes the genes needed to synthesize tryptophan.When the concentration of tryptophan is high -it activates tryptophan repressor which shut down the tryptophan operon
2.From the above stements which is not true about the differences between liver cells and kidney cells of same organism is-they contain different genes.
3.DNA methylation is not involed in post rancriptional control.
4.Riboswitch-an mRNA THAT CAN REGULATE ITS OWN TRANCRIPTION AND TRANSLATIONS.
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