Question

which technology has been commonly utilized by scientists to manipulate heritable information by creating dna fragments with ends that can join with other dna fragments?

○ gel electrophoresis

○ genetic cloning

○ plasmid transformation

○ restrictive enzyme analysis

Explanation:

• Gel electrophoresis: Separates DNA fragments by size, not for creating joinable ends.
• Genetic cloning: Involves creating copies of DNA/ organisms, not directly about creating joinable DNA ends.
• Plasmid transformation: Is about introducing plasmids into cells, not creating DNA fragments with joinable ends.
• Restrictive enzyme analysis: Restriction enzymes cut DNA at specific sites, creating sticky or blunt ends that can join with other DNA fragments, which matches the description.

Answer:

D. Restrictive enzyme analysis