3 Promoter gene - Site for binding of RNA polymerase
4 Structural gene- synthesis of galactosides
Explanation:
Synthesis of galactosides doesnot occur in lac operon but rather it is broken down.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342958
Identify the diagram.
1 Lac operon (switched on)
2 Lac operon (switched off)
3 Try operon (switched on)
4 Trp operon (switched off)
Explanation:
Lac operon - switched off
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342959
Assertion : The predominant site for control of gene expression in prokaryotes is transcription initiation. Reason : The activity of RNA polymerase is regulated by accessory proteins, which affect recognition of start sites.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. In a transcription unit, the activity of RNA polymerase at a given promoter is in turn regulated by interaction with accessory proteins, which affect its ability to recognise start sites. These regulatory proteins can act both positively (activators) and negatively (repressors).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342960
In E.coli , the lac operon gets switched on when:
1 Lactose is present and it binds to the repressor
2 Repressor binds to operator
3 RNA polymerase binds to the operator
4 Lactose is present and it binds to RNA polymerase
Explanation:
In E.coli , the lac operon gets switched on when: Lactose is present and it binds to the repressor
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342961
In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is inducer. iii. Regulator gene produces repressor ...
3 Promoter gene - Site for binding of RNA polymerase
4 Structural gene- synthesis of galactosides
Explanation:
Synthesis of galactosides doesnot occur in lac operon but rather it is broken down.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342958
Identify the diagram.
1 Lac operon (switched on)
2 Lac operon (switched off)
3 Try operon (switched on)
4 Trp operon (switched off)
Explanation:
Lac operon - switched off
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342959
Assertion : The predominant site for control of gene expression in prokaryotes is transcription initiation. Reason : The activity of RNA polymerase is regulated by accessory proteins, which affect recognition of start sites.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. In a transcription unit, the activity of RNA polymerase at a given promoter is in turn regulated by interaction with accessory proteins, which affect its ability to recognise start sites. These regulatory proteins can act both positively (activators) and negatively (repressors).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342960
In E.coli , the lac operon gets switched on when:
1 Lactose is present and it binds to the repressor
2 Repressor binds to operator
3 RNA polymerase binds to the operator
4 Lactose is present and it binds to RNA polymerase
Explanation:
In E.coli , the lac operon gets switched on when: Lactose is present and it binds to the repressor
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342961
In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is inducer. iii. Regulator gene produces repressor ...
3 Promoter gene - Site for binding of RNA polymerase
4 Structural gene- synthesis of galactosides
Explanation:
Synthesis of galactosides doesnot occur in lac operon but rather it is broken down.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342958
Identify the diagram.
1 Lac operon (switched on)
2 Lac operon (switched off)
3 Try operon (switched on)
4 Trp operon (switched off)
Explanation:
Lac operon - switched off
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342959
Assertion : The predominant site for control of gene expression in prokaryotes is transcription initiation. Reason : The activity of RNA polymerase is regulated by accessory proteins, which affect recognition of start sites.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. In a transcription unit, the activity of RNA polymerase at a given promoter is in turn regulated by interaction with accessory proteins, which affect its ability to recognise start sites. These regulatory proteins can act both positively (activators) and negatively (repressors).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342960
In E.coli , the lac operon gets switched on when:
1 Lactose is present and it binds to the repressor
2 Repressor binds to operator
3 RNA polymerase binds to the operator
4 Lactose is present and it binds to RNA polymerase
Explanation:
In E.coli , the lac operon gets switched on when: Lactose is present and it binds to the repressor
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342961
In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is inducer. iii. Regulator gene produces repressor ...
3 Promoter gene - Site for binding of RNA polymerase
4 Structural gene- synthesis of galactosides
Explanation:
Synthesis of galactosides doesnot occur in lac operon but rather it is broken down.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342958
Identify the diagram.
1 Lac operon (switched on)
2 Lac operon (switched off)
3 Try operon (switched on)
4 Trp operon (switched off)
Explanation:
Lac operon - switched off
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342959
Assertion : The predominant site for control of gene expression in prokaryotes is transcription initiation. Reason : The activity of RNA polymerase is regulated by accessory proteins, which affect recognition of start sites.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. In a transcription unit, the activity of RNA polymerase at a given promoter is in turn regulated by interaction with accessory proteins, which affect its ability to recognise start sites. These regulatory proteins can act both positively (activators) and negatively (repressors).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342960
In E.coli , the lac operon gets switched on when:
1 Lactose is present and it binds to the repressor
2 Repressor binds to operator
3 RNA polymerase binds to the operator
4 Lactose is present and it binds to RNA polymerase
Explanation:
In E.coli , the lac operon gets switched on when: Lactose is present and it binds to the repressor
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342961
In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is inducer. iii. Regulator gene produces repressor ...
3 Promoter gene - Site for binding of RNA polymerase
4 Structural gene- synthesis of galactosides
Explanation:
Synthesis of galactosides doesnot occur in lac operon but rather it is broken down.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342958
Identify the diagram.
1 Lac operon (switched on)
2 Lac operon (switched off)
3 Try operon (switched on)
4 Trp operon (switched off)
Explanation:
Lac operon - switched off
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342959
Assertion : The predominant site for control of gene expression in prokaryotes is transcription initiation. Reason : The activity of RNA polymerase is regulated by accessory proteins, which affect recognition of start sites.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Both Assertion and Reason are incorrect
Explanation:
In prokaryotes, control of the rate of transcriptional initiation is the predominant site for control of gene expression. In a transcription unit, the activity of RNA polymerase at a given promoter is in turn regulated by interaction with accessory proteins, which affect its ability to recognise start sites. These regulatory proteins can act both positively (activators) and negatively (repressors).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342960
In E.coli , the lac operon gets switched on when:
1 Lactose is present and it binds to the repressor
2 Repressor binds to operator
3 RNA polymerase binds to the operator
4 Lactose is present and it binds to RNA polymerase
Explanation:
In E.coli , the lac operon gets switched on when: Lactose is present and it binds to the repressor
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
342961
In regulation of gene expression in prokaryotes i. Lactose acts as suppressor for gene expression. ii. Tryptophan is inducer. iii. Regulator gene produces repressor ...
