Homework SourseBio cell and molecular ANSWER ALL 1 In the bacterial cell th
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
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
Solution
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.
