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How did Hershey and Chase's research with bacteriophages help confirm that DNA is in genetic material?
They found that all of the viral DNA and little of the protein had entered E. coli cells. Then they concluded that DNA is the hereditary molecule in viruses.
What did hershey and chase know about bacteriophages that led them to use these viruses in their DNA experiment?
Hershey and Chase knew that bacteriophages infect bacteria by injecting their DNA into the host cell. This led them to use bacteriophages in their DNA experiment to confirm that DNA, not protein, is the genetic material responsible for heredity. By radioactively labeling the DNA and proteins of the virus, they were able to trace the genetic material through the infection process.
How did Hershey and chase confirm that DNA is a genetic material?
Hershey and Chase confirmed that DNA is the genetic material through their famous experiment using bacteriophages, which are viruses that infect bacteria. They labeled the DNA of one batch of phages with radioactive phosphorus and the protein coat of another batch with radioactive sulfur. After allowing the phages to infect bacterial cells, they found that only the labeled DNA entered the bacteria and directed the production of new phages, while the protein remained outside. This demonstrated that DNA, not protein, carries the genetic information necessary for viral replication.
What is a DNA fingerprint Why is it important?
A DNA fingerprint is a unique pattern of DNA fragments that can be used to identify individuals based on their genetic profile. It is important in forensic science to solve crimes, in paternity tests to confirm relationships, and in medical research to study genetic diseases.
What are radioactively tagged bacteriophages to discover that DNA not protein is injected into host cells?
Radioactively tagged bacteriophages are used to confirm that DNA, not protein, is injected into host cells during infection. The radioactively labeled DNA can be detected inside the host cells after infection, providing evidence that DNA is the genetic material transferred by the bacteriophages. This experiment was crucial in establishing DNA as the genetic material in organisms.
How did the Hershey and Chase experiment produce evidence that DNA and not protein is the hereditary material and viruses?
They found that all of the viral DNA and little of the protein had entered E. coli cells. Then they concluded that DNA is the hereditary molecule in viruses.
How did Hershey and Chase's research with bacteriophages help confirm that DNA is in genetic material?
They found that all of the viral DNA and little of the protein had entered E. coli cells. Then they concluded that DNA is the hereditary molecule in viruses.
What did hershey and chase know about bacteriophages that led them to use these viruses in their DNA experiment?
Hershey and Chase knew that bacteriophages infect bacteria by injecting their DNA into the host cell. This led them to use bacteriophages in their DNA experiment to confirm that DNA, not protein, is the genetic material responsible for heredity. By radioactively labeling the DNA and proteins of the virus, they were able to trace the genetic material through the infection process.
What two scientists performed a series of experiments to confirm that DNA was the genetic material?
Gregor Mendel, a European scientist who lived during the 1800s.
How did Hershey and chase confirm that DNA is a genetic material?
Hershey and Chase confirmed that DNA is the genetic material through their famous experiment using bacteriophages, which are viruses that infect bacteria. They labeled the DNA of one batch of phages with radioactive phosphorus and the protein coat of another batch with radioactive sulfur. After allowing the phages to infect bacterial cells, they found that only the labeled DNA entered the bacteria and directed the production of new phages, while the protein remained outside. This demonstrated that DNA, not protein, carries the genetic information necessary for viral replication.
Why is important to repeat your experiment?
Repeating the experiment will either confirm the results you've just obtained, or show up errors.
Discuss why experimental results must be reproducible in order to be considered valid?
If the experiment is not reproducible, no one can perform the experiment independently to confirm the results.
When can a theory be changed?
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
What was Albert Einstein's most famous experiment?
Albert Einstein's most famous experiment was the photoelectric effect experiment, which helped confirm the particle nature of light and contributed to the development of quantum theory.
What happens if the experiment dose not confirm hypothesis?
This indicates that the hypothesis is probably incorrect and a new hypothesis needs to be developed. A negative result for a scientific experiment is just as important as a positive result and means that the experiment was a success.
How does repeating the investigation help the student?
repeating a investigation can help to confirm your results. If you try an experiment once, it could be wrong so try it again and repeat it to confirm the results.
When can scientific theory be change?
whenever an experiment fails to confirm the theory it is no longer a theory ... it becomes a hypothesis
