This set of Class 12 Biology Chapter 12 Multiple Choice Questions & Answers (MCQs) focuses on “Biotechnological Applications in Medicine: Molecular Diagnosis – 1”.
1. A person with the hereditary disease can be cured with the help of _________
a) gene therapy
b) cloning
c) dialysis
d) chemotherapy
View Answer
Explanation: Gene therapy is a technique used to cure many hereditary diseases. It involves changing the genome in order to prevent or cure diseases. It is one of the most successful techniques used to cure hereditary diseases or to cure deficiency of various hormones.
2. A collection of methods that allows correction of a gene that has been diagnosed in child/embryo is called _________
a) cloning
b) gene therapy
c) chemotherapy
d) dialysis
View Answer
Explanation: A collection of methods that allows the correction of a gene that has been diagnosed in a child/embryo is called gene therapy. It consists of various processes. In this, the defective genes are corrected and replaced with normal, healthy genes.
3. In gene therapy, the gene defects are cured in a child or ________ stage.
a) adult
b) teenage
c) old
d) embryo
View Answer
Explanation: In gene therapy, the gene defects are cured in child or embryonic stage. This phase is chosen to avoid complications and each and every cell will receive a healthy, functional gene.
4. In gene therapy, the genetic defect is corrected by delivery of _______ gene into the individual.
a) incorrect
b) mutant
c) normal
d) jumping
View Answer
Explanation: In gene therapy, the genetic defect is corrected by the delivery of a normal gene into the individual. This normal gene when replaced cures that deficiency. It is a functional gene and is useful in the curing of that disorder.
5. The inserted normal gene takes over the function of _________ gene.
a) correct
b) right
c) non-functional
d) functional
View Answer
Explanation: In gene therapy, the inserted normal gene takes over the function of the non-functional gene. This non-functional gene is also called as an incorrect or mutant gene. This change in function is useful in successfully curing of the disease.
Sanfoundry Global Education & Learning Series – Biology – Class 12.
To practice all chapters and topics of class 12 Biology, here is complete set of 1000+ Multiple Choice Questions and Answers.
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- Practice Class 12 - Mathematics MCQs
- Practice Class 11 - Biology MCQs
- Check Class 12 - Biology Books
- Practice Class 12 - Physics MCQs
- Practice Class 12 - Chemistry MCQs
