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Q. No.Tetracycline resistance gene in the vector pBR322 carries the recognition sequence for:
1. PstI
2. PvuII
3. BamH I
4. EcoR I
Subtopic: Cloning Vector |
88%
From NCERT
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If an enzyme catalyses the removal of nucleotides from the ends of DNA, then it should be called as:
1. endonuclease
2. exonuclease
3 ligase
4. reverse transcriptase
Subtopic: Restriction Enzymes: Historical Background | Tools |
91%
From NCERT
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The number of times the recognition sequence of EcoRI is expected to appear in a dsDNA of 10,000 bp length will be:
1. 1
2. 2
3. 4
4. 8
1. 1
2. 2
3. 4
4. 8
Subtopic: Restriction Enzymes - Main Enzymes |
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A plasmid has a single recognition sequence for EcoRI. When cut with this enzyme, the number of resultant fragments will be:
1. 1
2. 2
3. 3
4. 4
Subtopic: Cloning Vector |
From NCERT
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The most critical requirement for any DNA molecule to be able to act as a cloning vector during rDNA procedures will be:
1. Ori
2. MCS
3. More than one selectable marker
4. A silent promoter
1. Ori
2. MCS
3. More than one selectable marker
4. A silent promoter
Subtopic: Cloning Vector |
88%
From NCERT
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Given below are four statements pertaining to the separation of DNA fragments using Gel electrophoresis. Identify the correct statements:
Choose the correct answer from the options given below:
1. Only (c) and (d)
2. Only (a) and (c)
3. Only (b) and (c)
4. Only (a) and (b)
| a: | DNA fragments are negatively charged molecules and can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. |
| b: | The separation of DNA fragments is possible because they differ in size. |
| c: | Smaller the size of the DNA fragment, shorter the distance it travels through agarose gel. |
| d: | Pure DNA can be visualized directly by exposing it to UV radiation without any staining. |
1. Only (c) and (d)
2. Only (a) and (c)
3. Only (b) and (c)
4. Only (a) and (b)
Subtopic: Separation and Isolation of DNA fragments |
87%
From NCERT
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Upon exposure to UV radiation, DNA stained with ethidium bromide will show:
1. Bright orange colour
2. Bright red colour
3. Bright Blue colour
4. Bright yellow colour
1. Bright orange colour
2. Bright red colour
3. Bright Blue colour
4. Bright yellow colour
Subtopic: Separation and Isolation of DNA fragments |
91%
From NCERT
NEET - 2023
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During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:
| 1. | Polysaccharides | 2. | RNA |
| 3. | DNA | 4. | Histones |
Subtopic: General Design of an rDNA experiment |
87%
From NCERT
NEET - 2023
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In gene gun method used to introduce alien DNA into host cells, microparticles of ___________ metal are used.
1. Silver
2. Copper
3. Zinc
4. Tungsten or gold
1. Silver
2. Copper
3. Zinc
4. Tungsten or gold
Subtopic: Transforming Plant & Animal Cell |
92%
From NCERT
NEET - 2023
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Main steps in the formation of Recombinant DNA are given below. Arrange these steps in a correct sequence.
Choose the correct answer from the options given below:
| A. | Insertion of recombinant DNA into the host cell. |
| B. | Cutting of DNA at specific location by restriction enzyme. |
| C. | Isolation of desired DNA fragment. |
| D. | Amplification of gene of interest using PCR. |
Choose the correct answer from the options given below:
| 1. | B, D, A, C | 2. | B, C, D, A |
| 3. | C, A, B, D | 4. | C, B, D, A |
Subtopic: Process of Biotech |
From NCERT
NEET - 2023
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