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in oil spill. Some bacteria actually thrive on these molecules using them as a source of carbon. genes for
Enzymes involved in the decomposition of hydrocarbons
carried out by plasmids.

Other plasmids carry genes for fusion. Other plasmids are called reproductive factors or F factors for short
Genes required for attachment. they have about 25
genes, including those that produce similar pyrethrum
Connection tube for connection and DNA transfer

Cells with F factor are called F+. it can run
Copying the F factor into the F-cell moves the recipient to F+.
Sometimes the F factor involves the primary chromosome (which is no longer a plasmid), when
It can be carried away from the chromosome as it moves through the tube that carries other genes.
One cell is another cell.

Registers of some plasmid resistance. factors of resistance, or
R factors can activate genetic code that degrades proteins
Or change antibiotics

 

 

. Other R factors give resistance
Heavy metals are counteracted by bacteria in their environment.
The R factor was first observed by biologists in 1957.
During diarrheal infections in Japan, it was found that some strains caused by the design of the Shigella bacterium were resistant to many antibiotics. The researchers found that the entire spectrum of antibiotics can be changed, even if it cannot be changed by a combination of resistance.

The genes on the primary chromosome are changed. It was later shown that the gene for antibiotic resistance
carried out by plasmids. Each R factor contains one or more genes
Confers resistance to specific antibiotics
The genes that code for proteins involved in DNA transmission are
receiving bacteria. Until biologists decide.

Before the discovery of antibiotics, there were factors that confer resistance to naturally occurring antibiotics.
used by people. However, it appears that the R factors have been
more common in modern times, probably due to heavy
Use of antibiotics in hospitals is selective for bacteria
bring them.

Antibiotic resistance is a serious threat to humans
Health and improper use of antibiotics contributes to
With this problem you probably went to the doctor
A sore throat can be caused by a virus or by A.
Caused by bacteria. best way to determine cause
The doctor will take a small sample from your sore throat and have an agent for it to grow and identify bacteria.
Currently but you cannot wait another day for the results. no patience, just ask the doctor to give you something
you feel good he gave you an antibiotic
the sore throat gradually gets better, and
You would think the antibiotic did this job.

But suppose the infection is a virus. that way
In case, the antibiotic does nothing to fight it
Pain, which governs only the normal course.
However, it can do something harmful:\

It kills many common bacteria in your body
Antibiotics may be selected for bacteria that have R. It happens
Factors for the survival and reproduction of these bacteria in the presence of antibiotics
Soon it will be too much. next
You may have a bacterial infection
Anti-bacterial preparations in your body,
And antibiotics are effective.
Antibiotic resistance to pathogenic bacteria
Gives an example of evolution in motion. I
years after it was first discovered
In the twentieth century, antibiotics were in high demand.
Success in dealing with existing diseases
have been persecuted by people for thousands of years
Cholera, tuberculosis and leprosy. but time will pass
Subsequently, anti-bacteria appeared.

This
Classic Natural Selection: Genetic
bacteria are diverse
Saved from the pain of antibiotics
There must be a genetic system that allows it to do so.
Mutated substances convert genes into plasmids
and chromosomes.

As we have seen plasmids, viruses and even page capsids
(in the case of trafficking) can carry genes from a
Bacterial cells, among others. Another type of “genetic transport” occurs within the individual cell. It depends on the type of DNA that can be inserted at a new location.

on the same chromosome or on a different chromosome. these are
The DNA sequence is called a variable element. Their entry often produces phenotypic effects through interference
They are inserted genes\).
The first transmission components found in prokaryotes are large DNA fragments, typically 1,000 to 2,000 bases.
couple is long, phone

 

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