Question

Following are the steps in one type of gene therapy -

I. Inject engineered cells into patients bone marrow

II. Viral DNA carring the normal allele inserts into

chromosome

III. Let retrovirus infect bone marrow cells that have removed from patient and cultured

IV. Insert RNA version of normal allele into retrovirus

Which of the following is correct sequence of steps -

• A. I, II, III, IV
• B. IV, III, II, I
• C. I, II, IV, III
• D. IV, III, I, II

Answer 1

Answer: (B)

IV, III, II, I