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
Dafna1 [17]
3 years ago
14

An important method for controlling the spread of the h6n2 influenza (bird flu) virus in chickens is having a procedure to deter

mine whether chickens are infected with the virus. it is common to apply a procedure, called an elisa test, to measure the concentration of anti–bird flu antibodies in a blood sample taken from a chicken. if the elisa test reveals a high-enough concentration of antibodies, the chicken is said to test positive, and it is classified as infected with the virus. otherwise, the chicken is said to test negative, and it is classified as not infected. however, the elisa test is a complex procedure that is not always accurate. one type of mistake, a false positive result, occurs when the elisa test gives a positive result for a chicken that is not infected with the virus. a second type of mistake, a false negative result, occurs when the elisa test gives a negative result for an infected chicken.
Biology
2 answers:
nirvana33 [79]3 years ago
6 0
If we consider the positive possibility of false negative and false positive for tests on individual chicken. Veterinary have developed a procedure to determine if the H6N2 virus is present in the flock of chickens. The veterinary select ten chickens randomly from the flock and perform Elisa test of the blood sample from each and every one of the ten chickens. 
By the conclusion of the veterinary if the H6N2 virus presents in flock if three out of ten chickens have positive Elisa.
dem82 [27]3 years ago
3 0
<h2>Answer:</h2>

The probability of false negative and false positive results is present in Elisa. But bird flu is a contagious virus, so relative testing in a known number of chickens in flock is used to get accurate results.

<h3>Explanation.</h3>

h6n2 influenza is a contagious virus of chickens. It highly spread in the flock via infected individual.

So if we want to test the influenza virus in the chickens. We will take a control, a healthy chicken from not that flock and then compare the Elisa results of flock chicken with test of healthy individual.

If 30 to 40% of results are positive,there means there is influenza virus in flock.

You might be interested in
What is meant by a mechanism of evolution?
Effectus [21]

The mechanisms of evolution allow evolutionism to be explained according to the scientific method. Through the mechanisms of evolution we can understand how the equilibrium in a population is changed and the consequences that this change causes.

The most important mechanisms of evolution include:

  • Trial and error: It is the simplest of all methods of evolutionism; in principle it is typical of microorganisms with a lot of progeny in each generation and relies on the later mechanism of natural selection.
  • Natural Selection: In the strict and exclusive sense, it would act as the only method of effective evolution, since random modifications alone would not achieve the observed evolution of living beings. Assuming the randomness of modifications, the earlier trial and error method would be more general than natural selection, since it does not always operate.  Natural selection is characterized as a method of verification exogenous to the evolutionary system itself or the system of creation of genetic modifications, as it acts “a posteriori”.
  • Exhaustive proof or simulation: Of the results predicted by the genetic modifications made. In certain cases, living organisms may prove the effect of replacing, for example, one protein with another, if the evidence is satisfactory with respect to the functionality of the new mechanism of evolution; and there is no risk of having side effects on suppression of the first protein, genetic modification could be carried out without major problems as the guarantee objective would be fully covered.
  • Partial Proof of Modifications: When an evolutionary system is complicated and contains many interrelationships, exhaustive proof of the effects of a small modification will not be possible and will have to be limited to more or less extensive but not total proof. To the extent that the range of possible effects of genetic modification has been covered, it will carry greater or lesser risk. The risks of this method are very well known to computer programmers.

6 0
3 years ago
How many average days does it rain per year
Ganezh [65]
It really depends on where you live(not asking where you live im not a stalker)
3 0
3 years ago
3. The enzyme DNA polymerase works only in the 5' to 3' direction. How does this affect the leading strand and the lagging stran
saul85 [17]

Answer: C

Explanation:

4 0
3 years ago
Read 2 more answers
The tundra is characterized by extremely low temperatures as well as little precipitation, a rocky landscape,and permafrost.beca
Jlenok [28]
Low shrubs, grasses, reindeer mosses
4 0
3 years ago
Read 2 more answers
what is difference between the name of an object versus the chemical formula?please answer my question I'm trying that from thre
Step2247 [10]

Answer:

Assuming you mean in a compound of elements: A name is just what you call it, and the chemical formula is what elements it is made of.

Explanation:

Take sodium chloride (Salt) for example. It's name is sodium chloride, but its chemical formula is NaCl. Na= Sodium, and Cl = Chlorine. So one sodium ion and one Chlorine ion create NaCl. Na+Cl=NaCl. And the name for the product of the formula is Sodium Chloride.

Another example is H2O (Water). H=Hydrogen and O=Oxygen. There are 2 hydrogens and one oxygen in H2O. H+H+O=H2O. The name for the formula is water.

3 0
3 years ago
Other questions:
  • Which type of decision making involves using one’s professional judgment based on past experiences rather than sequential logic
    14·1 answer
  • Anyone good with proofs? I WILL AWARD BRAINLIEST TO CORRECT ANSWER AND 40 POINTS!
    11·1 answer
  • Gila monsters are very well adapted to their homes. They have thick skin to prevent water loss and they burrow to escape the hea
    6·2 answers
  • Complete the following vocabulary exercise related to DNA replication. Match the words below with the appropriate blank in the s
    12·1 answer
  • How do you're muscles &amp; skeleton work together?
    15·1 answer
  • DNA replication occurs during<br> a) S phase<br> b) Mitosis<br> c) G1 phase<br> d) Prophase
    10·1 answer
  • Tree roots take up water and some minerals from the soil. How do you think that water gets to the other parts of the tree that n
    9·1 answer
  • 7. Once you have taken a bite of an apple, which of the following represents the correct pathway of its nutrients?
    15·2 answers
  • Describe the way convection works and how it might work within the earth? -geology question
    11·1 answer
  • Enzymes affect chemical reactions in living cells by changing the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!