1
state the problem
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hypothess (prediction)
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design the experiment
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record and analyze the date
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<span>conclusion (what did you learn)</span>
The Griffith's experiment, the Avery-MacLeod-McCarty experiment, and the Hershey–Chase experiments were the set of experiments that established DNA as the key hereditary molecule. The Avery-MacLeod-McCarty experiment was an extension to the Griffith's experiment. The heat killed virulent S strain cells of the Griffith's experiment were lysed to form a supernatant containing a mix of RNA, DNA, proteins and lipids from the cell. The supernatent was equally divided into 3 parts after the removal of the lipids. The 3 parts were respectively treated with an RNAase to degrade the RNA, DNAase to degrade the DNA and proteinase to degrade the proteins. The treated supernatant was then added into the culture containing the non-virulent R cells. In case of the supernatant treated with the DNAse, no transformation of R cells into S cells occurred. The transformation of R cells to S cells occurred in the proteinase and the RNAse cases. This indicated that DNA was the hereditary molecule and not protein or RNA.

answer of the question: B
Melanomas are rare to occur but must be removed quickly to prevent them from spreading.
Melanoma is also called "the most serious skin cancer disease" because it can spread very quickly. Melanoma can develop within a mole that is already present on our skin and appear suddenly as a dark spot on the skin that looks different from the remaining types of mole.
Early diagnosis and treatment of Melanoma type of cancer are of great importance so we can conclude that early treatment of Melanomas can prevent it from spreading.
Learn more: brainly.com/question/25033946
Can also be gained from natural instinct (you are born with instinct)