Hi,
Harshey and Chase did a great experimentation which was basically a two step experiment to prove that DNA and not proteins are the actual carriers of genetic information from parents to offspring.
- In the first part of their experiment, they used bacteriophages (virus that eat bacteria). They used radioactively labeled sulphur(35S) medium to grow bacteriophages and observed that all the bacteriophages had proteins with radioactive sulphur(35S).
- In the next step they allowed these phages to infect bacteria and to their surprise, they found that the bacteria did not had radioactively labeled sulphur in them because the coat of bacteriophage stays outside the body of bacteria when it attacks it. This proved that DNA not proteins were the hereditary material.
- To make their results more reliable, they did a second experimentation in which, they marked the DNA of the phage with radioactive phosphorus 32P. After labeling DNA, they repeated the same experiment and this time, they found radioactive phosphorus inside the bacteria.
<em>This meant that the bacteria had DNA of phage entered inside them and this again proved that DNA not proteins are the hereditary material. You can see attached image for better understanding.
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Hope it help!
It could perhaps provide a better understanding of why dinosaurs went extinct. It could also provide some of the things Dino's ate and their average life style.
Reintroduction of wildlife species means an attempt to resettle them within their historical area of distribution (within their range), where they have become extinct
ATP is the most important product of the krebs cycle(36 moles)
The compost species required for breaking down compost-able garbage are: earthworms, slugs, beetle and fruit fly.
<h3>What is compost?</h3>
Compost refers to waste composed of dead and decaying leaves and organic matter which is used as manure to enrich the soil.
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Composting helps to remove organic waste from the environment.
Compost requires some species if organisms which help to degrade the waste matter.
Some compost species which can be used to treat the problem of waste disposal include earthworms, slugs, beetle and fruit fly.
Therefore, the composition of compost species for breaking down compost-able garbage is: earthworms, slugs, beetle and fruit fly.
Learn more about compost at: brainly.com/question/4620473