A gene whose expression helps to identify transformed cell is known as :
- Vector
- Plasmid
- Structural gene
- Selectable marker
The Correct Option is D
Approach Solution - 1
Approach Solution -2
In recombinant DNA technology, a selectable marker is a gene that allows scientists to identify cells that have successfully taken up foreign DNA (transformation).
- These marker genes typically encode for antibiotic resistance. For instance, a plasmid might contain a gene for ampicillin resistance.
- After introducing the plasmid containing the foreign DNA and the selectable marker into a culture of cells, scientists can add the antibiotic ampicillin to the culture medium.
- Only the cells that have taken up the plasmid and the selectable marker gene will survive because they will be resistant to the antibiotic.
Thus, the right answer to this question is a selectable marker.
Top Questions on Biotechnology
- What is the importance of microorganisms in research?
- Bihar Board XII - 2025
- Biology
- Biotechnology
- In the enzyme-linked antibody used in ELISA, the interaction between the enzyme and antibody is stabilized by
- CUET (PG) - 2025
- Bioinformatics
- Biotechnology
- Agrobacterium tumefaciens is frequently used as a vector to create transgenic plants. Under laboratory conditions Agrobacterium - mediated plant transformation does not require
- CUET (PG) - 2025
- Bioinformatics
- Biotechnology
- Monoclonal antibodies can be employed for
(A). Early detection of cancers
(B). Clear detection of pathogens
(C). Classification of blood group
Choose the correct answer from the options given below:- CUET (PG) - 2025
- Bioinformatics
- Biotechnology
- Ripening delayed tomatoes are produced by
- CUET (PG) - 2025
- Bioinformatics
- Biotechnology
Questions Asked in NEET exam
- Two identical point masses P and Q, suspended from two separate massless springs of spring constants \(k_1\) and \(k_2\), respectively, oscillate vertically. If their maximum velocities are the same, the ratio of the amplitude of P to the amplitude of Q is :
- NEET (UG) - 2025
- Waves and Oscillations
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
- NEET (UG) - 2025
- Moment Of Inertia
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
- NEET (UG) - 2025
- Electromagnetic Induction and Inductance
- Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
- NEET (UG) - 2025
- Genetics
Concepts Used:
Biotechnology
Biotechnology is a vast field of biology that involves the creation, production, and modification of useful products for human welfare using both the technology and the execution of living organisms and their components. An agricultural engineer, Karoly Ereky, coined the word "biotechnology" in 1919, achieving him the title of "Father of Biotechnology."
Principles of Biotechnology:
Among many, the two core techniques that entitled the birth of modern biotechnology are :
- Genetic Engineering is one of the methods of direct modifications of an organism's genome (i.e., DNA and RNA). It requires the introduction of new genes into host species to escalate function or trait, hence altering the host organism's phenotype.
- Bioprocess Engineering is one of the methods of maintaining sterile conditions to facilitate the growth of large quantities of desired microbes and other eukaryotic cells for the development of new or modified biotechnological products such as enzymes, vaccines, antibiotics, and other biotechnological products.