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Q. No.Match List I with List II:
List I
List II
A. Chloramphenicol
I. Join the cut ends of DNA molecule
B. Ethidium bromide
II. Makes bacterial cell competent to take up DNA
C. DNA ligase
III. Selectable marker
D. Calcium
IV. Agarose gel staining
Choose the correct answer from the options given below:
1. A - (III); B - (IV); C- (II); D - (I)
2. A - (III); B - (IV); C- (I); D - (II)
3. A - (IV); B - (III); C- (II); D - (I)
4. A - (IV); B - (III); C- (I); D - (II)
Subtopic: General Design of an rDNA experiment |
92%
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Consider the following steps involved in recombinant DNA technology
A. Downstream processing
B. Insertion of recombinant DNA into host cell
C. Isolation of genetic material
D. Obtaining the foreign gene product
E. Cutting of DNA at specific locations
Choose the correct sequence of steps
1. C, A, B, D, E
2. C, E, B, D, A
3. A, E, B, D, C
4. C, E, D, B, A
A. Downstream processing
B. Insertion of recombinant DNA into host cell
C. Isolation of genetic material
D. Obtaining the foreign gene product
E. Cutting of DNA at specific locations
Choose the correct sequence of steps
1. C, A, B, D, E
2. C, E, B, D, A
3. A, E, B, D, C
4. C, E, D, B, A
Subtopic: General Design of an rDNA experiment |
79%
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Match List-I with List-II :
Choose the correct answer from the options given below:
| List I | List II | ||
| (a) | Gene gun | (i) | Replacement of a faulty gene by a normal healthy gene |
| (b) | Gene therapy | (ii) | Used for transfer of gene |
| (c) | Gene cloning | (iii) | Total DNA in the cells of an organism |
| (d) | Genome | (iv) | To obtain identical copies of a particular DNA molecule |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (i) | (iv) | (iii) |
| 2. | (i) | (iii) | (ii) | (iv) |
| 3. | (iv) | (i) | (iii) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Transforming Plant & Animal Cell |
92%
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NEET - 2022
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Refer to the following statements for agarose-gel electrophoresis:
Choose the most appropriate answer from the options given below :
| (a) | Agarose is a natural polymer obtained from sea-weed. |
| (b) | The separation of DNA molecules in agarose-gel electrophoresis depends on the size of DNA. |
| (c) | The DNA migrates from negatively-charged electrode to the positively-charged electrode. |
| (d) | The DNA migrates from positively-charged electrode to the negatively-charged electrode. |
| 1. | (a) and (b) only | 2. | (a), (b) and (c) only |
| 3. | (a), (b) and (d) only | 4. | (b), (c) and (d) only |
Subtopic: Separation and Isolation of DNA fragments |
83%
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NEET - 2022
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Read the following statements and choose the correct option.
| Statement (A): | In gel electrophoresis, the most commonly used matrix is agar. |
| Statement (B): | Agar is a natural polymer extracted from sea weeds. |
| 1. | Both statements (A) and (B) are correct |
| 2. | Both statements (A) and (B) are incorrect |
| 3. | Only statement (A) is correct |
| 4. | Only statement (B) is correct |
Subtopic: Separation and Isolation of DNA fragments |
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How many statements given below are correct with respect to plasmids?
Select the correct option.
1. Three
2. Four
3. Two
4. One
| a. | They float freely in the cytoplasm of certain bacterial cells. |
| b. | They have the ability to replicate, independent of the genomic DNA. |
| c. | Herbert Boyer developed a method of removing and reinserting them in the cells. |
| d. | They are circular ssDNA molecules. |
1. Three
2. Four
3. Two
4. One
Subtopic: Introduction & History |
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Which of the following can act as selectable markers in a cloning vector?
a. ampR
b. tetR
c. ori
d. rop
Select the correct option.
1. (a) and (b)
2. (c) and (d)
3. (a), (c) and (d)
4. (a), (b), (c) and (d)
a. ampR
b. tetR
c. ori
d. rop
Select the correct option.
1. (a) and (b)
2. (c) and (d)
3. (a), (c) and (d)
4. (a), (b), (c) and (d)
Subtopic: Cloning Vector |
86%
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Complete the analogy and select the correct option.
BamHI : Sticky ends : : EcoRV : ______
1. Staggered ends
2. Cohesive ends
3. Blunt ends
4. Ends with overhanging stretches
BamHI : Sticky ends : : EcoRV : ______
1. Staggered ends
2. Cohesive ends
3. Blunt ends
4. Ends with overhanging stretches
Subtopic: Restriction Enzymes - Main Enzymes |
78%
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Match column I with column II and choose the correct option:
1. a(iv), b(i), c(ii), d(iii)
2. a(iii), b(iv), c(i), d(ii)
3. a(i), b(iv), c(ii), d(iii)
4. a(iii), b(iv), c(ii), d(i)
| Column I | Column II | ||
| a. | Salmonella typhimurium | (i) | Source of EcoRI |
| b. | Bacillus thuringiensis | (ii) | Used in developing transgenic tobacco plant |
| c. | Agrobacterium tumefaciens |
(iii) | Used in creating first recombinant DNA |
| d. | Escherichia coli | (iv) | Gene used in creating biopesticide |
1. a(iv), b(i), c(ii), d(iii)
2. a(iii), b(iv), c(i), d(ii)
3. a(i), b(iv), c(ii), d(iii)
4. a(iii), b(iv), c(ii), d(i)
Subtopic: Restriction Enzymes - Main Enzymes | Transforming Plant & Animal Cell | Restriction Enzymes: Historical Background |
87%
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| Assertion(A): | If BamHI cuts a 12 kb linear dsDNA fragment at two restriction sites which are at the same distance from the ends and each other, then only one band is obtained on agarose gel electrophoresis. |
| Reason(R): | Three equal sized fragments will be obtained on restriction digestion by BamHI. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is false but (R) is true. |
| 4. | (A) is true but (R) is false |
Subtopic: Tools: Enzymes: I |
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