Question

manny’s treatment uses crispr technology to edit the genome of blood stem cells, whereas jennelle’s treatment involves introducing a new beta-globin gene into her blood stem cells. what do their treatments have in common?

• both cause permanent genetic alterations to germ-line cells.
• both are designed to precisely correct the original beta-globin mutation.
• both are designed to restore fetal hemoglobin production.
• both rely on genetic engineering techniques.

Explanation:

CRISPR technology (used by Manny) and introducing a new gene (used by Jennelle) are both genetic engineering techniques. Germ - line cells are reproductive cells, and blood stem cells are somatic. Manny's treatment may not precisely correct the original mutation (could be editing in another way), and there's no indication both restore fetal hemoglobin. Genetic engineering is a broad category that includes both CRISPR - based genome editing and gene introduction.

Answer:

D. Both rely on genetic engineering techniques.