Q. No.Which one of the following techniques made it possible to genetically engineer living organisms?
1. Recombinant DNA techniques
2. X-ray diffraction
3. Heavier isotope labeling
4. Hybridization
1. Recombinant DNA techniques
2. X-ray diffraction
3. Heavier isotope labeling
4. Hybridization
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of:
| 1. | Silver or Platinum | 2. | Platinum or Zinc |
| 3. | Silicon or Platinum | 4. | Gold or Tungsten |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which one is a true statement regarding DNA polymerase used in PCR?
1. It is used to ligate introduced DNA in the recipient cell
2. It serves as a selectable marker
3. It is isolated from a virus
4. It remains active at high temperature
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The figure below is the diagrammatic representation of the E.Coli vector pBR 322. Which one of the given options correctly identifies its certain component(s)?
1. ori - original restriction enzyme
2. rop-reduced osmotic pressure
3. Hind III, EcoRI - selectable markers
4. ampR, tetR- antibiotic resistance genes
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
The figure below shows three steps (A, B, C) of Polymerase Chain Reaction (PCR). Select the option giving correct identification together with what it represents?
Options:
1. B - Denaturation at a temperature of about 98°C separating the two DNA strands.
2. A - Denaturation at a temperature of about 50°C
3. C - Extension in the presence of heat-stable DNA polymerase
4. A - Annealing with two sets of primers
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Which one of the following represents a palindromic sequence in DNA?
1. 5' - GAATTC - 3'
3' - CTTAAG - 5'
2. 5' - CCAATG - 3'
3' - GAATCC - 5'
3. 5' - CATTAG - 3'
3' - GATAAC - 5'
4. 5' - GATACC - 3'
3' - CCTAAG - 5'
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
Biolistics (gene-gun) is suitable for:
| 1. | Disarming pathogen vectors |
| 2. | Transformation of plant cells |
| 3. | Constructing recombinant DNA by joining with vectors |
| 4. | DNA fingerprinting |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
In genetic engineering, the antibiotic resistance gene are used:
1. As selectable markers
2. To select healthy vectors
3. As sequences from where replication starts
4. to keep the cultures free of infection
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
DNA fragments generated by the restriction endonucleases in a chemical reaction can be separated by:
1. Polymerase chain reaction
2. Electrophoresis
3. Restriction mapping
4. Centrifugation
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
For the multiplication of any alien piece of DNA in an organism, it needs to be part of a chromosome that has a specific:
| 1. | Telomeric sequence | 2. | Multiple cloning sites |
| 3. | Ori | 4. | Selectable marker |
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 38 chapters you need to be enrolled in MasterClass Course.
© 2025 GoodEd Technologies Pvt. Ltd.