Question

An example of gene therapy is
(a) production of injectable hepatitis B vaccine
(b) production of vaccines in food crops like
potatoes which can be eaten
(c) introduction of gene for adenosine deaminase
in persons suffering from severe combined
immuno deficiency
(d) production of test tube babies by artificial
insemination and implantation of fertilized
egg

Answer 1

Answer:

d)

Explanation:

Gene therapy is the introduction of genes into existing cells to prevent or cure a wide range of diseases. For example, suppose a brain tumor is forming by rapidly dividing cancer cells. ... The other target of some of the various retroviruses used include: bone marrow, skin, and liver cells

Answer 2

Gene therapy is the process of introduction of DNA into living human beings in order to treat disease. It is used to replace a missing gene product or to correct mutant alleles. For example, human gene therapy trial can be used for ex vivo introduction of functional ADA gene in bone marrow cells of the patient, suffering from SCID, through an engineered retrovirus containing a functional ADA gene. The treated cells were reintroduced into the patient’s marrow. Manual mixing of sperms and egg followed by implantation of fertilised egg in the uterus of the surrogate mother is called in vitro fertilisation. Gene manipulation refers to any techniques that create recombinant DNA which carries DNA from two different sources. Vaccines are produced by gene manipulation techniques. 

Thus, the correct answer is option C.