Select Question Set:
Q. No.How many cycles of PCR are required for obtaining 256 molecules of dsDNA, if your starting material was one molecule of dsDNA?
1. 4
2. 9
3. 128
4. 8
Subtopic: Polymerase Chain Reaction: PCR |
59%
Please attempt this question first.
Hints
Select the incorrect match with respect to rDNA technology:
1. Bioprocess engineering – Maintenance of sterile ambience
2. Genetic engineering – Alteration of genetic material
3. Downstream processing – Biosynthetic stage
4. Biosynthetic stage – Culturing of recombinant host cells
1. Bioprocess engineering – Maintenance of sterile ambience
2. Genetic engineering – Alteration of genetic material
3. Downstream processing – Biosynthetic stage
4. Biosynthetic stage – Culturing of recombinant host cells
Subtopic: Bioreactors/Downstream Processing |
75%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
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%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
During the process of isolation of DNA, chilled ethanol is added to:
1. Precipitate DNA
2. Break open the cell to release DNA
3. Facilitate action of restriction enzymes
4. Remove proteins such as histones
1. Precipitate DNA
2. Break open the cell to release DNA
3. Facilitate action of restriction enzymes
4. Remove proteins such as histones
Subtopic: Separation and Isolation of DNA fragments |
85%
From NCERT
NEET - 2013
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): Inserting alien DNA in pBR322 plasmid at Pst I makes the transformants sensitive to ampicillin antibiotic.
Reason (R): Restrictions site for Pst I is present on ampR .
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): Restrictions site for Pst I is present on ampR .
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: Tools: Vectors: I | Tools |
84%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): DNA ligase plays important role in recombinant DNA technology.
Reason (R): The linking of antibiotic resistant gene with plasmid vector became possible by enzyme DNA ligase.
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 linking of antibiotic resistant gene with plasmid vector became possible by enzyme DNA ligase.
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: General Design of an rDNA experiment |
92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): Restriction enzymes belong to a larger class of enzymes called nucleases.
Reason (R): Each restriction enzyme recognizes a specific palindromic nucleotide sequence in the DNA
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): Each restriction enzyme recognizes a specific palindromic nucleotide sequence in the DNA
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: Restriction Enzymes - Main Enzymes |
70%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Assertion (A): An alien DNA is linked with the origin of replication for making multiple identical copies.
Reason (R): An origin of replication is a specific DNA sequence which is responsible for initiating replication
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): An origin of replication is a specific DNA sequence which is responsible for initiating replication
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: General Design of an rDNA experiment |
81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
If you want to isolate DNA from a fungal cell, the enzyme that should not be used for the purpose is:
1. Protease
2. RNase
3. DNase
4. Chitinase
1. Protease
2. RNase
3. DNase
4. Chitinase
Subtopic: Process of Biotech |
56%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
If one wants to recover many copies of the target DNA, it should be cloned in a vector:
1. that is a single-stranded DNA molecule
2. whose origin [ori] supports a high copy number
3. that carries two selectable markers
4. whose cloning sites are all clustered at one place
1. that is a single-stranded DNA molecule
2. whose origin [ori] supports a high copy number
3. that carries two selectable markers
4. whose cloning sites are all clustered at one place
Subtopic: Cloning Vector |
91%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.