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Before the experiments of Hershey and Chase some scientists thought traits were inherited through .?
The realization that traits and certain diseases can be passed from parent to offspring stretches back at least to the ancient Greeks, well before any genome was actually decoded. The Greek physician Hippocrates theorized that "seeds" from different parts of the body were transmitted to newly
conceived embryos, a theory known as pangenesis.
What exactly these "seeds" might be was destined to remain a mystery for centuries. But the first person to put heredity to the test was Gregor Mendel, who systematically tracked dominant and recessive traits in his famous pea plants.
In 1869, Swiss physician Johannes Friedrich Miescher became the first scientist to isolate nucleic acids, the active ingredient of DNA. Over the next several decades, scientists peering deeper into the cell discovered mitosis and meiosis, the two types of cell division, and chromosomes, the long strands of DNA and protein in cell nuclei.
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Why did scientists question Avery's findings?
Scientists questioned Avery's findings because they had difficulty accepting that DNA, which was previously thought to be a simple molecule, could be responsible for genetic inheritance. Additionally, Avery's experiments were considered too simple and lacked detailed mechanistic explanations to convince some scientists of his conclusions.
What scientist concluded that DNA was the factor that caused one bacterium to transfer into another?
In 1944, Oswald Avery, Colin MacLeod, and Maclyn McCarty published a paper demonstrating that DNA was the transforming factor.Their discovery was at first met with disbelief by some scientists, who thought that only proteins could have enough complexity to hold genetic information. Also, for a while some scientists thought bacteria might have a different genetic chemistry from other organisms.Avery
Why were the experiments to replicate the formation of molecules conducted under conditions thought to be present on the early Earth?
It sounds like you are talking about some experiments done many years ago attempting to replicate the conditions thought to be present at the time that life appeared on earth. Special flasks were filled with certain gases and liquids and then exposed to electricity (standing in for lightning). The experiment did not form living cells, but as I recall there were some interesting structures found in the resulting mixture.
Oswald Avery and his colleagues showed that the transforming agent in Griffith's experiments was?
DNA. Oswald Avery and his colleagues demonstrated that the transforming agent responsible for the bacterial transformation in Griffith's experiments was DNA, not protein as previously thought. Their work laid the foundation for understanding the role of DNA in heredity.
Is the following sentence true or false For years many scientist thought that it was impossible to close bacteria?
False. Scientists have been able to culture and study bacteria in laboratories for many years, so it is not true that they thought it was impossible to clone bacteria.
Can thought extraction be inherited?
There are many inherited traits and conditions. Thought extraction is not one of them.
What did the experiments of griffith Avery and Hershey and chase show?
The first major experiment that led the discovery of DNA as the genetic material was performed by Griffith and Avery. They studied 2 strains of bacteria "Streptococcus Pneumonia, which causes pneumonia. They found that one strain could be transformed into other forms of bacteria and germs.
Who thought about making a chocolate bar?
Milton Hershey in 1900.
Why did scientists question Avery's findings?
Scientists questioned Avery's findings because they had difficulty accepting that DNA, which was previously thought to be a simple molecule, could be responsible for genetic inheritance. Additionally, Avery's experiments were considered too simple and lacked detailed mechanistic explanations to convince some scientists of his conclusions.
Does Nestle own Hershey?
No, Hershey does not own Nestle. Thought there has been talk in the past about the companies buying each other out this has yet to happen.
How did the results on j j thomsons experiments change how scientists thought about atoms?
J.J. Thomson's experiments with cathode rays helped to discover the existence of the electron, challenging the prevailing notion that atoms were indivisible. This led to the development of the plum pudding model of the atom, which proposed that electrons were embedded in a positively charged sphere. Thomson's work paved the way for a new understanding of the structure of atoms as composed of subatomic particles.
Why did Einstein do thought experiments?
Einstein used thought experiments to explore complex scientific concepts in his mind, without the need for physical experiments. This allowed him to develop his theories of relativity by visualizing hypothetical scenarios and predicting their outcomes. Thought experiments were a powerful tool for him to push the boundaries of traditional physics and challenge prevailing scientific beliefs.
In what year did Catherine Hershey die?
She died because she thought it would help so when she died
What scientist concluded that DNA was the factor that caused one bacterium to transfer into another?
In 1944, Oswald Avery, Colin MacLeod, and Maclyn McCarty published a paper demonstrating that DNA was the transforming factor.Their discovery was at first met with disbelief by some scientists, who thought that only proteins could have enough complexity to hold genetic information. Also, for a while some scientists thought bacteria might have a different genetic chemistry from other organisms.Avery
What are the advantages of a thought experiment?
A thought experiment isn't an experiment really, so does not compete with physical experiments. It is more of one way scientists explore ideas with each other by posing hypothetical situations. The advantage of that is that it is free to do, the only equipment it requires is a mind, and even the most impossible experiments can be proposed. e.g. "What would happen if Saturn were moved to Mar's orbit?"
Did Albert Einstein have a laboratory?
He was a theoretical physicists. For his work that made him famous, he did not need to run a laboratory. He is also known for his famous thought experiments. These were not real experiments, just hypothetical experiments he ran in his mind. Some of these thought experiments have been proven to be wrong, but they still contributed significantly to our understanding of physics. On the other hand, as he needed, he collaborated with other scientists who had their own labs either to develop new theories or to verify his previously stated arguments.
Who should be able to visualize things that no one has ever thought of before?
scientists
