During the process of gel electrophoresis, DNA moves towards the _ A_ of the electrophoretic chamber as the charge of DNA is _ B_. Choose the option that fills the blanks correctly.

 During the process of gel electrophoresis, DNA moves towards the _

$A$_ of the electrophoretic chamber as the charge of DNA is _$B$_.
Choose the option that fills the blanks correctly.

         A               B
1. Cathode       Positive
2. Cathode      Negative
3. Anode        Positive
4. Anode        Negative

Answer:4. Anode        Negative

DNA is negatively charged, therefore, when an electric current is applied to the gel, DNA will migrate towards the positively charged electrode i.e=Anode