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
Zepler [3.9K]
2 years ago
15

When doing blood testing for a viral infection, the procedure can be made more efficient and less expensive by combining partial

samples of different blood specimens. If samples from three people are combined and the mixture tests negative, we know that all three individual samples are negative. Find the probability of a positive result for three samples combined into one mixture, assuming the probability of an individual blood sample testing positive for the virus is 0.03.
Biology
2 answers:
Papessa [141]2 years ago
7 0

Answer:

The best way to approach this type of problem is to use the "complement method" ...  

P(positive result) = 1 - P(negative result)  

= 1 - (1 - 0.03)^3  

= 1 - 0.97^3 = 0.087327 or 8.7%  

Explanation:

romanna [79]2 years ago
5 0

Answer:

0.087

Explanation:

Given -

Probability of positive blood sample for an individual is equal to 0.03

Number of sample is equal to three

Now , probability of getting a positive result for three sample combined into one single mixture is equal to

1 - (P)^ 3

where P represents the probability of getting all individual negative test result

Substituting the given values in above equation, we get

P_{mixture} = 1 - (1-0.03)^3\\P_{mixture} = 1- (0.97)^3\\P_{mixture} = 0.087

You might be interested in
How does an increase in available food increase genetic diversity?
Dafna1 [17]

Answer:

more food means more of the species would stay alive longer so that would mean obviously more mating and mutations.

Explanation:

4 0
3 years ago
Read 2 more answers
Which of the following statements about DNA is FALSE?
Gwar [14]

Answer:

A) The two strands of a DNA molecule are parallel and complementary.

Explanation:

DNA is a polymer of nucleotide and this nucleotide are made up of a deoxyribose sugar molecule, a nitrogenous base, and a phosphate group. In DNA genetic information of the cell is stored in the form of nitrogenous bases.

DNA is double-stranded and both the strands run anti-parallel with each other.  This anti-parallel orientation provides the nitrogenous base of one strand to form hydrogen bonds with the nitrogenous base present on the opposite strand.

In DNA adenine base pairs with thymine with two hydrogen bonds and guanine base pairs with cytosine with three hydrogen bonds. So the false statement is A.

3 0
3 years ago
The best compression rate for an 8 year old would be (pick the most appropriate answer):
KiRa [710]
The answer is 114 compressions per minute. Chest compression is a technique used during cardiopulmonary resuscitation or for the treatment of choking.The latest CPR procedure does not allow or make use of mouth to mouth breathing as part of the protocol for an 8 year old and adults. The emphasis now being on continuously doing he chest compressions
4 0
3 years ago
Biuret's turned purple and the Sudan solution turned red
Helga [31]
Grapes Maybe?? Sorry I dunno, I just hear purple.
5 0
3 years ago
Read 2 more answers
A friend of yours claims to have identified a gene that causes a human disease! Your friend says that they have sequenced the DN
sattari [20]

Answer: Point mutation is easily reversible, thus non-lethal

Explanation:

Point mutation is caused by exchange of a single nucleotide for another. These change is called

1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)

2) Transversion (when a purine base substitute a pyrimidine base).

However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate

3 0
3 years ago
Other questions:
  • Organisms are classified as producers or consumers according to the way they…
    8·2 answers
  • Sponges have collar cells that trap food and ingest it by proteasespinocytosisphagocytosis or by the enzymes of lysosomes
    13·2 answers
  • The organic waste collected in your backyard will provide which type of energy?
    5·2 answers
  • Unicellular organisms sometimes found in hot springs are part of which domain?
    13·1 answer
  • DNA polymerase is the enzyme that carries out________.
    13·1 answer
  • The sea snails in tidal marine areas feed on the dominant species of algae. What kind of interaction takes place between the sea
    11·1 answer
  • The element nitrogen has the atomic number 7 and an atomic mass of 14. How many neutrons does an atom of nitrogen contain? A. 14
    6·1 answer
  • What 3 elements do all the Bio-molecules/Organic Molecules/Marco-molecules have in common? check all that apply.
    12·2 answers
  • Which of the following animals are examples of vertebrates? 
    13·2 answers
  • What do scientists assume a thin ring indicates when analyzing tree rings?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!