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
tangare [24]
3 years ago
15

when running a gel you need to have a positive control and negative control. what do these mean and what are they each used for?

Biology
1 answer:
Makovka662 [10]3 years ago
3 0
I believe the positive control receives a treatment with a known response, so that this positive response can be compared to the unknown response of the treatment. This is used in electrophoresis to compare the DNA strands to the DNA standard. The negative control is used when no response is expected, which is also used in the process of electrophoresis. Electrophoresis is a technique used in laboratories  in order to separate macromolecules based on size. It applies a negative charge so proteins move towards a positive charge. It is sued for the analysis of both DNA and RNA. 
You might be interested in
Which of the following individuals emphasized the importance of social approval in human
koban [17]
The answer for this question is B
7 0
3 years ago
31. How many calories would it take to raise a persons body temperature 3 degrees if their
dedylja [7]

Answer:

.....................

5 0
3 years ago
If a cell with 28 chromosomes undergoes mitosis how many chromosomes will each of daughter cells have ?
gayaneshka [121]

Answer:

14 chromosomes

Explanation:

Each gamete will get half of the number of the original chromosomes

5 0
3 years ago
Read 2 more answers
Does mitosis or meiosis occur more frequently in your body? Explain your answer
vodomira [7]

Answer:

Mitosis

Explanation:

Meiosis is the splitting of sex cells which happens during reproduction. Mitosis is the splitting of body cells in order to make more body cells. Mitosis is how your body grows, therefore it occurs more frequently because the body is not constantly reproducing.

3 0
3 years ago
Read 2 more answers
​(f) contact a local hospital and ask them the percentage of the population that is blood type o. why might the results​ differ?
Fudgin [204]
Contacting a local hospital and asking them the percentage of the population that has blood type O will generate different results. 

The factors that we have to consider why there is differing results are:
1) location of the hospital
2) nationality of their patients
3) number of their patients

I am assuming that the population that question is referring to is the number of patients in the local hospital. The bigger the population, the smaller the effect a unit has on the whole and vice versa. 

I read an article that states that 37% of the U.S. population has O+ blood type. These people are usually of Hispanic descent or some Asian descent. So, if a hospital is in a locality that has a majority of Hispanic or Asian patients, its percentage will be higher than a hospital that is located in a Caucasian-populated area. 

Aside from Type O+ (most common), blood types also include: O-, A+, A-, B+, B-, AB+, and AB- (rarest blood type)
7 0
3 years ago
Other questions:
  • Based on the diagram below, which part of an atom has the greatest mass?
    8·2 answers
  • A patient who had a laparoscopic cholecystectomy 4 hours ago complains of fullness in the abdomen and mild discomfort. because h
    7·1 answer
  • Name the two kinds of endoplasmic reticulum
    14·2 answers
  • Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps plants make their own f
    7·2 answers
  • How does the anaphase stage differ in the two phases of meiosis?
    14·2 answers
  • Does anyone know the answers?
    13·1 answer
  • Identify which layer of the integumentary system each of the following is most likely to be found and provide a one phrase descr
    11·1 answer
  • What is a colloid solution?
    10·1 answer
  • Pleeaasee help me its about plants and i dont know how do itttt
    8·2 answers
  • What are the parts of animal and find their function. ​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!