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Veseljchak [2.6K]
3 years ago
5

In the article you read, the number of cases of paralytic polio went from about 2,500 per year in the 1950s to complete eradicat

ion in the Americas by 1994. Explain how the use of cell technology makes disease eradication possible.
Biology
2 answers:
notka56 [123]3 years ago
6 0

E2020 Check every item included in your answer.

  • Cell technology allows research into a disease to occur at a rapid pace.  
  • Cell technology speeds up the production and testing of vaccines and drugs.
  • Cell cultures can produce antibodies in large quantities in a short period of time.
  • Cell cultures allow vaccines to be produced cheaply.
  • Cell cultures make it possible to vaccinate large numbers of people quickly.
EleoNora [17]3 years ago
4 0

Oral polio vaccine is highly effective and inexpensive (about US$0.10 per dose, or US$0.30 per child and its availability has bolstered efforts to eradicate polio. A study carried out in an isolated Eskimo village showed that antibodies produced from subclinical wild virus infection persisted for at least 40 years. Because the immune response to oral polio vaccine is very similar to natural polio infection, it is expected that oral polio vaccination provides similar lifelong immunity to the virus.

Contact immunity to polio can occur when attenuated poliovirus derived from the oral polio vaccine is excreted, and infects and indirectly vaccinates unvaccinated individuals.

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Identify the genotype for this pedigree chart
Zepler [3.9K]

Lets say that the genotypes are:


Male affected:XbY


Male unaffected: XaY


Female  affected: XbXb


Female carrier: XaXb


Female unaffected:XaXa


P: XbY  x  XaXa


F1: XaXb  XaXb  XaY  XaY The middle square is female carrier.


P:XbY  x  XaXb


F1: XaXb  XbXb  XaY  XbY The left square is affected female.


P:XaY  x  XbXb


F1: XaXb  XaXb  XbY  XbY The right square is affected male.



6 0
3 years ago
Read 2 more answers
The primary function of DNA polymerase is to:
Debora [2.8K]

Answer: Option A

The primary function of DNA polymerase is to add nucleotides to the growing daughter strands.

Explanation:

DNA polymerase is an enzyme that synthesis DNA and its main function is to make DNA from nucleotides which is the building block of DNA. It is essential for DNA replication and work in pairs by creating identical DNA strands from the original DNA molecule. DNA copies are created by pairing the nucleotides to each bases present in the DNA molecule.The bases are thymine, cytostine,guanine, and adenine, the pairing occur with any of the above combinations forming two pairs respectively.

3 0
3 years ago
(07.05 LC)
Nezavi [6.7K]

Answer:

b.  Sufficient concentration and correct orientation of particles

Explanation:

Collision theory states that when two suitable particles states that when suitable particles of the reactant collide with other and causes any noticeable chemical change, these successful changes are called collisions.

<em>Two factors that responsible for collision are reactant concentration and   correct orientation of particles. </em>

<u>Reactant concentration:</u><u> </u>higher concentration of reaction will increase the rate of reaction as, it will provide more reactant to collide in a specific time period.

<u>Orientation of particles:</u> the correct orientation of particles facilitate the forming and breaking of bonds and arrange the atoms to form product molecules.

Hence, the correct option is "Sufficient concentration and correct orientation of particles "

5 0
3 years ago
A glacier that covers a wide area is called
Zarrin [17]
It is a valley glacier
8 0
3 years ago
What is the correct sequence of protein synthesis?
nikitadnepr [17]

I'll go with B.

Correct me If I'm wrong.

Hope I could assist!

5 0
3 years ago
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