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Q92 (CAPF/2026) Science & Technology › Biotechnology & Health

Which of the following is/are the basic step(s) in genetically modifying an organism?
1. Identification of DNA with desirable genes
2. Introduction of the identified DNA into the host
3. Maintenance of introduced DNA in the host and transfer of the DNA to its progeny
Select the correct answer using the code given below.

Result
Your answer: —  ·  Correct: B

Explanation

According to standard biological principles (as detailed in NCERT Class 12 Biology), there are three basic steps in genetically modifying an organism:

  1. Identification of DNA with desirable genes: This involves locating and isolating the specific gene that confers a desired trait.
  2. Introduction of the identified DNA into the host: The isolated gene is inserted into the host organism's cells, often using vectors like plasmids or methods like micro-injection.
  3. Maintenance and Transfer: It is crucial that the introduced DNA is integrated into the host's genome so that it remains stable and is inherited by the progeny (offspring) during reproduction.

If any of these steps are missing, the genetic modification will not be successful or sustainable. Therefore, all three statements represent the fundamental steps of the process.

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SIMILAR QUESTIONS

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Which one of the following statements is not correct with regard to genetically modified organisms ?

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Consider the following statements : 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person's genome can be edited before birth at the early embryonic stage. 3. Human induced pluripotent stem cells can be injected into the embryo of a pig. Which of the statements given above is/are correct ?