Which application of recombinant DNA technology involves replacing a nonfunctional, mutated gene with a functional gene?


a. Gene therapy
b. Functional genomics
c. Genetic screening
d. Protein synthesis

Verified step by step guidance

1. Understand the key terms in the question: recombinant DNA technology is used to manipulate genes, and the question asks about replacing a nonfunctional, mutated gene with a functional one.
2. Review each option to see which best fits the description of replacing a faulty gene with a working gene:
3. a. Gene therapy involves introducing a functional gene into a patient's cells to correct a genetic disorder caused by a defective gene.
4. b. Functional genomics studies gene functions and interactions but does not directly involve replacing genes.
5. c. Genetic screening is a diagnostic process to detect genetic mutations but does not involve gene replacement.
6. d. Protein synthesis is the process by which cells make proteins from genes, not gene replacement.

Key Concepts

Recombinant DNA Technology

Recombinant DNA technology involves combining DNA from different sources to create new genetic combinations. It enables scientists to manipulate genes for various applications, such as gene cloning, gene therapy, and genetic engineering.

Gene Therapy

Gene therapy is a medical technique that replaces or repairs defective genes responsible for disease by introducing functional genes into a patient's cells. It aims to correct genetic disorders by restoring normal gene function.

Functional Genomics and Genetic Screening

Functional genomics studies gene functions and interactions, while genetic screening identifies mutations or genetic predispositions. Neither directly involves replacing faulty genes but rather focuses on understanding gene roles or detecting genetic abnormalities.