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DNA Mutations can be positive in the fact that they can be beneficial to the host of the mutation. For example, if our DNA mutated so that we could have fins and gills, we could be better equipped for the ocean, which could be useful if the Earth's landmass was devastated or could no longer support all of us. Most of the time, DNA Mutations are useful adaptations to maintain homeostasis in the human body.
DNA is a molecule that carries genetic information in living organisms, and it plays a crucial role in determining an individual's characteristics and traits. In a biological or forensic context, the presence of DNA can be used to identify individuals or ascertain relationships between them. So, in that sense, DNA can be seen as "positive" when it is used for these purposes.
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Why does the DNA fragment size change as you move from the cathode to the anode?
In gel electrophoresis, DNA fragments move towards the anode (positive electrode) because DNA is negatively charged. Smaller fragments move faster through the gel matrix, so they appear closer to the anode while larger fragments move slower and appear closer to the cathode. This results in separation of DNA fragments based on size.
How does DNA and gel electrophoresis relate?
Gel electrophoresis is a technique used to separate and analyze DNA fragments based on their size. When a DNA sample is loaded onto a gel and an electric current is applied, the DNA fragments move through the gel at different rates depending on their size. This allows scientists to visualize and analyze the DNA fragments to determine their sizes and quantities.
What major enzyme involved on replication?
DNA polymerase is the major enzyme involved in DNA replication. It is responsible for synthesizing a new strand of DNA complementary to the template strand during replication.
Why does DNA have a negative charge?
DNA has a negative charge because the phosphate groups in its backbone are negatively charged. These phosphate groups contain oxygen atoms that can release hydrogen ions, resulting in a negative charge. This negative charge allows DNA to interact with positively charged molecules and ions in biological processes.
What molecule catalyzes covalent bond formation between DNA?
DNA ligase catalyzes the formation of covalent bonds between nucleic acid strands, such as DNA. It acts by joining the sugar-phosphate backbone of two DNA fragments together to repair DNA damage or during DNA replication.
If the DNA of the mother is A and the child is A pos what is the DNA of the father?
Given that the mother's DNA is A and the child is A positive, the father's DNA must also contain the A antigen. The father could be A positive, A negative, AB positive, or AB negative.
Why does DNA move toward the positive electrode?
because DNA is of negative charge thus it will travel towards the positive pole due to attraction.....and the movement of the DNA is also facilitated by the repulsion of the positive pole which is near by to DNA
What is true of the DNA fragment band closest to the positive end of the gel?
they are the smallest.
What functional group in the DNA structure causes it to move only toward the positive poles?
The phosphate group in the DNA backbone has a negative charge due to its phosphate ions. This negative charge causes the DNA molecule to move towards the positive pole in processes such as gel electrophoresis.
Do you have lupus with positive ana-dna?
If you have lupus, you will almost definitely have a positive ANA. However, a positive ANA doesn't necessarily mean you have lupus.
What is responsible for the movement of DNA in gelelectrophoresis?
An electric field is responsibly for the movement of DNA in gel electrophoresis. The net negative charge of the DNA is drawn to the positive charge of the anode.
How are the Positive and negative terminals on the simulated electrophoresis gel?
The positive terminal is usually located at the end where DNA migrates towards, while the negative terminal is located at the end where DNA migrates from. This creates an electric field that helps separate DNA fragments based on size.
What would happen if the electrodes were plugged into the wrong outlet during gel electrophoresis?
DNA migrates from the black (negative) terminal to the red (positve) if you place your DNA in the wells adjacent to the red terminal in would in a short time migrate off the end of your gel into the running buffer. Most people who run DNA gels have done this at least once.
Why all DNA molecules move in the same direction in an electric field?
DNA molecules are negatively charged due to their phosphate backbone. When an electric field is applied, these negatively charged DNA molecules are attracted towards the positive end of the field. This causes all DNA molecules to move in the same direction towards the positive electrode.
Does DNA samples start at the negative or the black charge?
DNA samples start with a negative charge due to the phosphate groups in the DNA backbone, which are negatively charged. This allows the DNA fragments to move towards the positive electrode in gel electrophoresis.
What cause the DNA fragments to move through the gel?
DNA fragments move through the gel during gel electrophoresis because they are negatively charged and are attracted towards the positively charged electrode. As they migrate through the gel, smaller fragments move faster and travel further than larger fragments due to differences in size and shape.
What determines how far each piece of DNA will travel through the gel?
positive or negative charges determines which way it's going to move.
