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Q. No.Match List I with List II
List I
List II
A. Fredrich Miescher
I. Used X-ray analysis to investigate DNA structure
B. Rosalind Franklin
II. Provided experiment evidence of semiconservative DNA replication
C. James Watson
III. Discovered DNA
D. Mathew Meselson
IV. Elucidated 3-dimensional double helix DNA structure
Choose the correct answer from the options given below:
1. A-IV, B-I, C-III, D-I
2. A-III, B-II, C-IV, D-I
3. A-III, B-II, C-I, D-IV
4. A-III, B-I, C-IV, D-II
Subtopic: Genetic Code |
Level 4: Below 35%
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E.coli growing in a medium containing radioactive thymidine was allowed to grow in normal medium (without radioactive thymidine) for two generations. What percentage of bacteria will have radioactive DNA strand?
1. 100%
2. 50%
3. 25%
4. 12.5%
1. 100%
2. 50%
3. 25%
4. 12.5%
Subtopic: DNA Replication |
71%
Level 2: 60%+
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The sequence of a DNA strand is 3'TTCGCATG 5'. The sequence of the complementary strand will be
1. 5'AAGCGTAC 3'
2. 5'CATGCGAA 3'
3. 5'CATGCGAA 3'
4. 3'CATGCGAA 5'
1. 5'AAGCGTAC 3'
2. 5'CATGCGAA 3'
3. 5'CATGCGAA 3'
4. 3'CATGCGAA 5'
Subtopic: DNA Replication |
90%
Level 1: 80%+
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Post-transcriptional modifications in eukaryotes include
1. Polyadenylation, capping, coding
2. Capping, splicing, coding
3. Coding, splicing, polyadenylation
4. Capping, splicing, polyadenylation
1. Polyadenylation, capping, coding
2. Capping, splicing, coding
3. Coding, splicing, polyadenylation
4. Capping, splicing, polyadenylation
Subtopic: Transcription |
75%
Level 2: 60%+
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Which of the following is required as inducer(s) for the expression of Lac operon?
1. Galactose
2. Lactose
3. Lactose and galactose
4. Glucose
1. Galactose
2. Lactose
3. Lactose and galactose
4. Glucose
Subtopic: Gene Regulation: Lac Operon |
90%
Level 1: 80%+
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Which of the following is the main enzyme required for transcription?
1. DNA dependent DNA polymerase
2. DNA dependent RNA polymerase
3. RNA dependent RNA polymerase
4. RNA dependent DNA polymerase
1. DNA dependent DNA polymerase
2. DNA dependent RNA polymerase
3. RNA dependent RNA polymerase
4. RNA dependent DNA polymerase
Subtopic: Transcription |
85%
Level 1: 80%+
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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 |
91%
Level 1: 80%+
NEET - 2022
Hints
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 |
| (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 |
92%
Level 1: 80%+
NEET - 2022
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Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
| Statement I: | DNA polymerases catalyse polymerisation only in one direction, that is 5' →3' |
| Statement II: | During replication of DNA, on one strand the replication is continuous while on other strand it is discontinuous. |
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic: DNA Replication |
87%
Level 1: 80%+
NEET - 2022
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List- I | List-II | ||
| (a) | Bacteriophage \(\phi \times 174\) | (i) | 48502 base pairs |
| (b) | Bacteriophage lambda | (ii) | 5386 nucleotides |
| (c) | Escherichia coli | (iii) | 3.3 × 109 base pairs |
| (d) | Haploid content human DNA | (iv) | 4.6 × 106 base pairs |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (ii) | (iv) | (i) | (iii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (i) | (ii) | (iv) | (iii) |
Subtopic: The DNA |
83%
Level 1: 80%+
NEET - 2022
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