1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Galina-37 [17]
3 years ago
14

How does the process of gel electrophoresis separate DNA fragments?

Biology
2 answers:
Marizza181 [45]3 years ago
7 0

DNA is negatively charged due to its phosphate groups. Gel electrophoresis has one side that is positive and other that is negative. Once dna fragments are placed inside. The bigger fragments will move towards the positive side since positive is attracted to negative.

scoundrel [369]3 years ago
3 0

Answer:

For the separation of DNA fragments we use gel electrophoresis.

Explanation:

Since DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the positive electrode anode under an electric field through a medium or matrix. The most common matrix is agarose. The DNA fragments separate according to their size through sieving effect provided by the agarose gel. Hence, the smaller the fragment size, the farther it moves. The separated DNA fragments can be visualized only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiations. You can see the bright orange colored bands of DNA in a ethidium bromide stained gel exposed to UV light.

You might be interested in
quizlet urine is produced by the urine is produced by the ureter. gallbladder. kidney. urinary bladder. urethra.
Step2247 [10]

Answer:

Urine is produced in the kidneys

Explanation:

Urine is a substance which is a mix of urea and water. Urea comes from the liver and other parts of the body but it is made into urine in the kidneys.

5 0
1 year ago
What happens when molecules diffuse across the cell membrane? The molecules diffuse until all of them are outside the cell. The
Zinaida [17]

Answer: The correct answer is from areas of high concentration to low concentration.

Explanation: Diffusion, by definition, is the process of molecules (any molecule) going down their concentration gradient (i.e. they are going from higher concentration to lower concentration). Hope that helped!

5 0
3 years ago
Read 2 more answers
To test your hypothesis, the same fertilizer from the farm will be mixed into the water of one aquarium (experimental) and the o
lisov135 [29]

Answer:

One significant difference that I noticed was the color of the water. In the control aquarium, the color of the water at 30 days was the same as it was on the 1st day. In the experimental aquarium, the water had a green tint on the 30th day, but on the first day it was clear.

4 0
2 years ago
Suppose the femur bone of an animal has 1,000 atoms of carbon-14 when the animal dies. How many atoms of carbon 14 will be prese
shtirl [24]

Answer:

After 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

Explanation:

The half-life of a radioactive isotope of an element is the time taken for half the atoms present in a given amount of the element to undergo decay or disintegration. For example, the half-life of carbon-14 isotope is 5730 years. This means that, if there are 100 atoms of carbon-14 present in a given sample of a material, in the next 5730 years, approximately, 50 atoms of carbon-14 will be left in the material.

Since the half-life of radioactive isotopes are constant, these radioactive isotopes are used in the determining the ages of ancient life-forms as well as rocks.

In the given example, after 6000 years, approximately 500 atoms of carbon-14 will be left in the femur bone of an animal which had 1000 atoms of carbon-14 when the animal died.

8 0
3 years ago
What will most likely happen if a population is large and no migration, mutation, or environmental change occurs?
eimsori [14]
4. Gene frequencies will remain constant
6 0
2 years ago
Other questions:
  • The rn recognizes that in cases of conflict involving client care decisions which principle overrides beneficence
    11·1 answer
  • Why are the interactions of hormones and tissues considered to be feedback mechanisms
    7·1 answer
  • Does anyone know what type of turtle this is? I really need to know.
    7·1 answer
  • A 4-day-old infant is admitted to the pediatric unit with a cleft lip and palate. surgery to repair the lip is scheduled for lat
    8·1 answer
  • What is genotype for a recessive trait found on the female chromosome?
    14·1 answer
  • Refer to the picture below. This is an example of:
    10·1 answer
  • A (blank) is a statement saying that what is presented is true.
    8·1 answer
  • An ecosystem is defined by the
    12·1 answer
  • Please need help with this biology question (photo)
    11·1 answer
  • Choose True or False.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!