- 1(current)
Q. No.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: Â Restriction Enzymes - Main Enzymes |Â Transforming Plant & Animal Cell |Â Restriction Enzymes: Historical Background |
 87%
From NCERT
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Read the following statements and choose the correct option.
1. Only statement A is correct
2. Only statement A is incorrect
3. Both A and B statements are correct
4. Both A and B statements are incorrect
| Statement (A): | DNA cannot pass through cell membranes as it is a hydrophobic molecule. |
| Statement (B): | Treatment with Ca2+ ions increases the efficiency with which DNA enters into the bacterium. |
2. Only statement A is incorrect
3. Both A and B statements are correct
4. Both A and B statements are incorrect
Subtopic: Â Transforming Plant & Animal Cell |
 62%
From NCERT
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Read the following statements and choose the correct option
Statement A: CaCl2 treatment increases the efficiency of DNA uptake to produce transformed bacterial cells
Statement B: The divalent Ca+2 ions create transient pores in the bacteria
1. Only statement A is correct
2. Only statement B is correct
3. Both A and B statements are correct
4. Both A and B statements are incorrect
Statement A: CaCl2 treatment increases the efficiency of DNA uptake to produce transformed bacterial cells
Statement B: The divalent Ca+2 ions create transient pores in the bacteria
1. Only statement A is correct
2. Only statement B is correct
3. Both A and B statements are correct
4. Both A and B statements are incorrect
Subtopic: Â Transforming Plant & Animal Cell |
From NCERT
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Assertion(A): Foreign DNA can be inserted into host cells by heat shock treatment, microinjection and biolistics.
Reason(R): The chromogenic substrate used in blue-white screening of recombinant DNA is X-gal.
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 true but (R) is false.
4. Both (A) and (R) are false.
Reason(R): The chromogenic substrate used in blue-white screening of recombinant DNA is X-gal.
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 true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â Transforming Plant & Animal Cell |Â Host & Desired DNA |Â Large Scale Production |
 62%
From NCERT
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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: Â Transforming Plant & Animal Cell |
 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
Consider the following statements:
| I. | Ori is responsible for copy number of the linked DNA. |
| II. | Transformation is the process through which a piece of DNA is introduced into a host bacterium. |
| III. | Bacteriophages have very high copy numbers of their genome within the bacterial cell. |
Which of the above statements are true?
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
Subtopic: Â Tools: Vectors: I |Â Transforming Plant & Animal Cell |Â Tools |
 80%
From NCERT
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