Q. No.Match List I with List II
Choose the correct answer from the options given below:
| List I | List II | ||
| A. | Gene 'a' | I. | \(\beta\)-galactosidase |
| B. | Gene 'y' | II. | Transacetylase |
| C. | Gene 'i' | III. | Permease |
| D. | Gene 'z' | IV. | Repressor protein |
Choose the correct answer from the options given below:
| Options: | A | B | C | D |
| 1. | III | I | IV | II |
| 2. | II | I | IV | III |
| 3. | II | III | IV | I |
| 4. | III | IV | I | II |
Subtopic: Gene Regulation: Lac Operon |
82%
From NCERT
NEET - 2023
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Name the component that binds to the operator region of an operon and prevents RNA polymerase from transcribing the operon.
| 1. | Promotor | 2. | Regulator protein |
| 3. | Repressor protein | 4. | Inducer |
Subtopic: Gene Regulation: Lac Operon |
72%
From NCERT
NEET - 2023
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Which one of the following acts as an inducer for lac operon?
| 1. | Sucrose | 2. | Lactose |
| 3. | Glucose | 4. | Galactose |
Subtopic: Gene Regulation: Lac Operon |
89%
From NCERT
NEET - 2023
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In an E.coli strain i gene gets mutated and its product cannot bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome ?
1. RNA polymerase will bind the promoter region
2. Only z gene will get transcribed
3. z, y, a genes will be transcribed
4. z, y, a genes will not be translated
1. RNA polymerase will bind the promoter region
2. Only z gene will get transcribed
3. z, y, a genes will be transcribed
4. z, y, a genes will not be translated
Subtopic: Gene Regulation: Lac Operon |
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
In lac operon, z gene codes for :
1. \(\beta -\)galactosidase
2. Permease
3. Repressor
4. Transacetylase
1. \(\beta -\)galactosidase
2. Permease
3. Repressor
4. Transacetylase
Subtopic: Gene Regulation: Lac Operon |
90%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match List-I with List- II
Choose the correct answer from the options given below :
| List-I | List-II | ||
| (a) | In lac operon i gene codes for | (i) | transacetylase |
| (b) | In lac operon z gene codes for | (ii) | permease |
| (c) | In lac operon y gene codes for | (iii) | \(\beta-\)galactosidase |
| (d) | In lac operon a gene codes for | (iv) | Repressor |
Choose the correct answer from the options given below :
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (iii) | (i) | (iv) | (ii) |
Subtopic: Gene Regulation: Lac Operon |
91%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match the following genes of the Lac operon with their respective products:
| (a) | i gene | (i) | -galactosidase |
| (b) | Z gene | (ii) | Permease |
| (c) | A gene | (iii) | Repressor |
| (d) | Y gene | (iv) | transacetylase |
Select the correct option
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (i) | (iii) | (ii) | (iv) |
| 3. | (iii) | (i) | (ii) | (iv) |
| 4. | (iii) | (i) | (iv) | (ii) |
Subtopic: Gene Regulation: Lac Operon |
69%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Select the correct match:
1. Alec Jeffreys – Streptococcus pneumoniae
2. Alfred Hershey and Martha Chase – TMV
3. Matthew Meselson and F. Stahl – Pisum sativum
4. Francois Jacob and Jacques Monod – Lac operon
Subtopic: Gene Regulation: Lac Operon |
87%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
All of the following are part of an operon except:
1. an operator
2. structural genes
3. an enhancer
4. a promoter
2. structural genes
3. an enhancer
4. a promoter
Subtopic: Gene Regulation: Lac Operon |
89%
From NCERT
NEET - 2018
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Which of the following is required as an inducer(s) for the expression of lac operon?
1. galactose
2. lactose
3. lactose and galactose
4. glucose
2. lactose
3. lactose and galactose
4. glucose
Subtopic: Gene Regulation: Lac Operon |
85%
From NCERT
NEET - 2016
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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