Regulation of Gene Expression and Lac Operon
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BIOXII06: MOLECULAR BASIS OF INHERITANCE

342970 The y gene codes for an enzyme____, which increases permeability of the cell to_____

1 Transacetylase, \(\beta\)-galactosides
2 Permease, \(\beta\)-galactosides
3 Beta-galactosidase, \(\beta\)-galactosides
4 Beta-galactosidase,\(\beta\)-galactosidase
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342971 Lactose is the substrate for the lac enzyme \(\beta\)-galactosidase, it regulates

1 Switching off of the operon
2 Switching on of the operon
3 Both (1) and (2)
4 Synthesis of polypeptide chain
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342972 Select the correct option
A. Gene expression results in the formation of a polypeptide
B. Beta galactosidase causes hydrolysis of a tri -saccharide, lactose into galactose and glucose
C. The development and differentiation of embryo into adult organisms are also a result of the coordinated regulation of expression of several sets of genes

1 A & B are correct
2 A & C are correct
3 Only A is correct
4 Only C is correct
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342973 Which one of the following is wrongly matched?

1 Translation - using information in mRNA to make protein
2 Transcription - Writing information from DNA to tRNA
3 Repressor protein - Binds to operator to stop enzyme synthesis
4 Operon - Structural genes, operator and promoter
AIPMT - 2014
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342975 Match Column I with Column II
Choose the correct answer from the options
given below:
Column I
Column II
A
Frederick Griffith
P
Genetic code
B
Francois Jacob & Jacque Monod
Q
Semi-conservative
mode of DNA
replicatione
C
Har Gobind Khorana
R
Transformation
D
Meselson & Stahl
S
Lac operon

1 \({\text{A - R,}}\;{\text{B - Q,}}\;{\text{C - P,}}\;{\text{D - S}}\)
2 \({\text{A - R,}}\;{\text{B - S,}}\;{\text{C - P,}}\;{\text{D - Q}}\)
3 \({\text{A - Q,}}\;{\text{B - R,}}\;{\text{C - S,}}\;{\text{D - P}}\)
4 \({\text{A - S,}}\;{\text{B - P,}}\;{\text{C - Q,}}\;{\text{D - R}}\)
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BIOXII06: MOLECULAR BASIS OF INHERITANCE

342970 The y gene codes for an enzyme____, which increases permeability of the cell to_____

1 Transacetylase, \(\beta\)-galactosides
2 Permease, \(\beta\)-galactosides
3 Beta-galactosidase, \(\beta\)-galactosides
4 Beta-galactosidase,\(\beta\)-galactosidase
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342971 Lactose is the substrate for the lac enzyme \(\beta\)-galactosidase, it regulates

1 Switching off of the operon
2 Switching on of the operon
3 Both (1) and (2)
4 Synthesis of polypeptide chain
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342972 Select the correct option
A. Gene expression results in the formation of a polypeptide
B. Beta galactosidase causes hydrolysis of a tri -saccharide, lactose into galactose and glucose
C. The development and differentiation of embryo into adult organisms are also a result of the coordinated regulation of expression of several sets of genes

1 A & B are correct
2 A & C are correct
3 Only A is correct
4 Only C is correct
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342973 Which one of the following is wrongly matched?

1 Translation - using information in mRNA to make protein
2 Transcription - Writing information from DNA to tRNA
3 Repressor protein - Binds to operator to stop enzyme synthesis
4 Operon - Structural genes, operator and promoter
AIPMT - 2014
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342975 Match Column I with Column II
Choose the correct answer from the options
given below:
Column I
Column II
A
Frederick Griffith
P
Genetic code
B
Francois Jacob & Jacque Monod
Q
Semi-conservative
mode of DNA
replicatione
C
Har Gobind Khorana
R
Transformation
D
Meselson & Stahl
S
Lac operon

1 \({\text{A - R,}}\;{\text{B - Q,}}\;{\text{C - P,}}\;{\text{D - S}}\)
2 \({\text{A - R,}}\;{\text{B - S,}}\;{\text{C - P,}}\;{\text{D - Q}}\)
3 \({\text{A - Q,}}\;{\text{B - R,}}\;{\text{C - S,}}\;{\text{D - P}}\)
4 \({\text{A - S,}}\;{\text{B - P,}}\;{\text{C - Q,}}\;{\text{D - R}}\)
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BIOXII06: MOLECULAR BASIS OF INHERITANCE

342970 The y gene codes for an enzyme____, which increases permeability of the cell to_____

1 Transacetylase, \(\beta\)-galactosides
2 Permease, \(\beta\)-galactosides
3 Beta-galactosidase, \(\beta\)-galactosides
4 Beta-galactosidase,\(\beta\)-galactosidase
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342971 Lactose is the substrate for the lac enzyme \(\beta\)-galactosidase, it regulates

1 Switching off of the operon
2 Switching on of the operon
3 Both (1) and (2)
4 Synthesis of polypeptide chain
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342972 Select the correct option
A. Gene expression results in the formation of a polypeptide
B. Beta galactosidase causes hydrolysis of a tri -saccharide, lactose into galactose and glucose
C. The development and differentiation of embryo into adult organisms are also a result of the coordinated regulation of expression of several sets of genes

1 A & B are correct
2 A & C are correct
3 Only A is correct
4 Only C is correct
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342973 Which one of the following is wrongly matched?

1 Translation - using information in mRNA to make protein
2 Transcription - Writing information from DNA to tRNA
3 Repressor protein - Binds to operator to stop enzyme synthesis
4 Operon - Structural genes, operator and promoter
AIPMT - 2014
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342975 Match Column I with Column II
Choose the correct answer from the options
given below:
Column I
Column II
A
Frederick Griffith
P
Genetic code
B
Francois Jacob & Jacque Monod
Q
Semi-conservative
mode of DNA
replicatione
C
Har Gobind Khorana
R
Transformation
D
Meselson & Stahl
S
Lac operon

1 \({\text{A - R,}}\;{\text{B - Q,}}\;{\text{C - P,}}\;{\text{D - S}}\)
2 \({\text{A - R,}}\;{\text{B - S,}}\;{\text{C - P,}}\;{\text{D - Q}}\)
3 \({\text{A - Q,}}\;{\text{B - R,}}\;{\text{C - S,}}\;{\text{D - P}}\)
4 \({\text{A - S,}}\;{\text{B - P,}}\;{\text{C - Q,}}\;{\text{D - R}}\)
NEET - 2024
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BIOXII06: MOLECULAR BASIS OF INHERITANCE

342970 The y gene codes for an enzyme____, which increases permeability of the cell to_____

1 Transacetylase, \(\beta\)-galactosides
2 Permease, \(\beta\)-galactosides
3 Beta-galactosidase, \(\beta\)-galactosides
4 Beta-galactosidase,\(\beta\)-galactosidase
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342971 Lactose is the substrate for the lac enzyme \(\beta\)-galactosidase, it regulates

1 Switching off of the operon
2 Switching on of the operon
3 Both (1) and (2)
4 Synthesis of polypeptide chain
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342972 Select the correct option
A. Gene expression results in the formation of a polypeptide
B. Beta galactosidase causes hydrolysis of a tri -saccharide, lactose into galactose and glucose
C. The development and differentiation of embryo into adult organisms are also a result of the coordinated regulation of expression of several sets of genes

1 A & B are correct
2 A & C are correct
3 Only A is correct
4 Only C is correct
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342973 Which one of the following is wrongly matched?

1 Translation - using information in mRNA to make protein
2 Transcription - Writing information from DNA to tRNA
3 Repressor protein - Binds to operator to stop enzyme synthesis
4 Operon - Structural genes, operator and promoter
AIPMT - 2014
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342975 Match Column I with Column II
Choose the correct answer from the options
given below:
Column I
Column II
A
Frederick Griffith
P
Genetic code
B
Francois Jacob & Jacque Monod
Q
Semi-conservative
mode of DNA
replicatione
C
Har Gobind Khorana
R
Transformation
D
Meselson & Stahl
S
Lac operon

1 \({\text{A - R,}}\;{\text{B - Q,}}\;{\text{C - P,}}\;{\text{D - S}}\)
2 \({\text{A - R,}}\;{\text{B - S,}}\;{\text{C - P,}}\;{\text{D - Q}}\)
3 \({\text{A - Q,}}\;{\text{B - R,}}\;{\text{C - S,}}\;{\text{D - P}}\)
4 \({\text{A - S,}}\;{\text{B - P,}}\;{\text{C - Q,}}\;{\text{D - R}}\)
NEET - 2024
Join With Us for More Updates
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342970 The y gene codes for an enzyme____, which increases permeability of the cell to_____

1 Transacetylase, \(\beta\)-galactosides
2 Permease, \(\beta\)-galactosides
3 Beta-galactosidase, \(\beta\)-galactosides
4 Beta-galactosidase,\(\beta\)-galactosidase
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342971 Lactose is the substrate for the lac enzyme \(\beta\)-galactosidase, it regulates

1 Switching off of the operon
2 Switching on of the operon
3 Both (1) and (2)
4 Synthesis of polypeptide chain
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342972 Select the correct option
A. Gene expression results in the formation of a polypeptide
B. Beta galactosidase causes hydrolysis of a tri -saccharide, lactose into galactose and glucose
C. The development and differentiation of embryo into adult organisms are also a result of the coordinated regulation of expression of several sets of genes

1 A & B are correct
2 A & C are correct
3 Only A is correct
4 Only C is correct
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342973 Which one of the following is wrongly matched?

1 Translation - using information in mRNA to make protein
2 Transcription - Writing information from DNA to tRNA
3 Repressor protein - Binds to operator to stop enzyme synthesis
4 Operon - Structural genes, operator and promoter
AIPMT - 2014
BIOXII06: MOLECULAR BASIS OF INHERITANCE

342975 Match Column I with Column II
Choose the correct answer from the options
given below:
Column I
Column II
A
Frederick Griffith
P
Genetic code
B
Francois Jacob & Jacque Monod
Q
Semi-conservative
mode of DNA
replicatione
C
Har Gobind Khorana
R
Transformation
D
Meselson & Stahl
S
Lac operon

1 \({\text{A - R,}}\;{\text{B - Q,}}\;{\text{C - P,}}\;{\text{D - S}}\)
2 \({\text{A - R,}}\;{\text{B - S,}}\;{\text{C - P,}}\;{\text{D - Q}}\)
3 \({\text{A - Q,}}\;{\text{B - R,}}\;{\text{C - S,}}\;{\text{D - P}}\)
4 \({\text{A - S,}}\;{\text{B - P,}}\;{\text{C - Q,}}\;{\text{D - R}}\)
NEET - 2024