Gel electrophoresis separates DNA fragments based on their length or size. Mutations, restriction sites and sequences cannot be directly known by gel electrophoresis alone. The DNA fragments are negatively charged and therefore will be attracted to the positive end of the electrophoresis which is at the bottom.
In this case the bands can be deleted and hybridize the DNA strand with the known strand to know the gene complementary to the gene of interest. Explanation: Electrophoresis is the process by which DNA fragments are separated based on the size of the DNA fragments. Moreover, if one wishes to know the gene of interest, the visualized fragments are separated and treated with the complementary strand of the gene of interest. Binding of the complementary base pair will show the gene of interest. This is how the gene of interest is known after the electrophoresis process.
The answer is C. Explanation: Electrophoresis describes the movement of particles in a gel, influenced by an electric charge. It is used to separate DNA particles based on their charge and size. Some of its types are native or buffer gels, gradient gels, among others.
false Explanation:
The correct option is B) DNA fragments are negatively charged. Explanation: The DNA backbone is made up of sugar and phosphates. The phosphates present in the DNA backbone are the main reason why DNA is negatively charged. The negative charge of DNA allows different DNA fragments to separate by gel electrophoresis, depending on their charge-to-mass ratio. Smaller DNA fragments will move faster towards the positive end of the gel compared to larger fragments and will therefore separate.
Answer 6
B. DNA fragments are negatively charged
Answer 7
Gel electrophoresis separates DNA fragments based on their size. Samples containing a mixture of DNA molecules of different sizes are loaded onto the gel. When an electric current is applied, DNA moves towards the positive electrode because DNA is negatively charged.
Gel electrophoresis separates fragments based on weight and electrical charge. Heavier and/or positively charged fragments do not go as far as lighter and/or negatively charged fragments.
Gel electrophoresis is used to separate DNA or its fragments based on length differences. An electric current passes through the gel with a positive pole at the bottom. Due to the difference in length of DNA fragments, some of them will travel faster than others. Expect to see smaller DNA fragments near the bottom of the gel and larger DNA fragments near the top of the gel.