Which of the following is most used in genetic engineering:
1.  E. coil and Agrobacterium
2.  Mycobacteria and Salmonella
3.  Aspergillus
4.  Penicillium

Subtopic:  Cloning Vector |
 93%
From NCERT
AIPMT - 1998
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Which of the following are used in gene cloning:

1. Lomasomes

2. Mesosomes

3. Plasmids

4. Nucleoids

Subtopic:  Cloning Vector |
 97%
From NCERT
AIPMT - 2010
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In genetic engineering, a DNA segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents (A-D) in this regard and select the correct option about which one or more of these can be used as a vector/vectors:

A. a bacterium B. plasmid
C. plasmodium D. bacteriophage

Options:

1. (A) only 2. (A) and (C) only
3. (B) and (D) only 4. (A), (B) and (D) only
Subtopic:  Cloning Vector |
 63%
From NCERT
AIPMT - 2010
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The most important feature in a plasmid to serve as a vector in gene cloning experiment is:
1. Origin of replication (ori)
2. Presence of a selectable marker
3. Presence of sites for restriction endonuclease
4. Its size

Subtopic:  Cloning Vector |
 79%
From NCERT
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The following diagram showing restriction sites in E.coli cloning vector pBR322. Find the role of 'X' and 'Y' genes :
1. The gene 'X' is responsible for controlling the copy number of the linked DNA and 'Y' for protein involved in the replication of Plasmid.
2. The gene 'X' is 'for protein involved in replication of Plasmid and 'Y' for resistance to antibiotics.
3. Gene 'X' is responsible for recognition sites and 'Y' is responsible for antibiotic resistance.
4. The gene 'X' is responsible for resistance to antibiotics and 'Y' for protein involved in the replication of Plasmid.
Subtopic:  Cloning Vector |
 76%
From NCERT
NEET - 2024
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Which of the following is not a selectable marker of cloning vectors?
1. Ampicillin
2. Metformin
3. Chloramphenicol
4. Tetracycline
Subtopic:  Cloning Vector |
 91%
From NCERT
NEET - 2024
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Match List-I with List-II
List-I List-II
A.  Ampicillin  I. Restriction sites 
B.  Ori II. Blue/White screening
C.  Multiple cloning sites III. Selectable marker 
D.  \(\beta\) galactosidase gene IV. Sequence from where replication starts
Choose the correct answer from the options given below: 
1. A-III, B-IV, C-I , D-II
2. A-III, B-I, C-IV, D-II
3. A-IV, B-III, C-II , D-I
4. A-II, B-IV, C-I, D-III
Subtopic:  Cloning Vector |
 86%
From NCERT
NEET - 2024
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Ligation of foreign DNA at which of the following site will result in loss of tetracycline resistance of pBR322?
1. PsT I 2. Pvu I
3. EcoR I 4. BamH I
Subtopic:  Cloning Vector |
 85%
From NCERT
NEET - 2023
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 Match List-I with List-II
List-I List-II
(A) Kanamycin (I) Delivers genes into animal cells
(B) ClaI (II) Selectable marker
(C) Disarmed retroviruses (III) Restriction site
(D) Kanamycin Rgene (IV) Antibiotic resistance

Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. (II) (III) (I) (IV)
2. (III) (I) (IV) (II)
3. (IV) (III) (I) (II)
4. (II) (IV) (I) (III)
Subtopic:  Cloning Vector |
 54%
From NCERT
NEET - 2023
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Which  of the following is not a desirable feature of a cloning vector?
1. Presence of two or more recognition sites
2. Presence of origin of replication
3. Presence of a marker gene
4. Presence of single restriction enzyme site
Subtopic:  Cloning Vector |
 74%
From NCERT
NEET - 2022
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