Which of the Following Is in the Correct Sequence

Multiple Choice

Which of the following is in the correct sequence?

A) addition of radioactive probe → gel electrophoresis → hybridization → Southern blotting → addition of restriction enzymes → visualization of DNA fragments
B) addition of radioactive probe → Southern blotting → gel electrophoresis → hybridization → visualization of DNA fragments on x-ray film
C) extraction of DNA from cells → hybridization → Southern blotting → gel electrophoresis → visualization of DNA fragments
D) extraction of DNA from cells → gel electrophoresis → Southern blotting → hybridization → visualization of DNA fragments on x-ray film
E) Southern blotting → gel electrophoresis → addition of restriction enzymes → addition of radioactive probe → visualization of DNA fragments