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The transforming principle of Pneumococus as found out by Avery, MacLeod and McCarty was
[1993]
- a)mRNA
- b)DNA
- c)protein
- d)polysaccharide
Correct answer is option 'B'. Can you explain this answer?
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The transforming principle of Pneumococus as found out by Avery, MacLe...
The transforming chemical discovered by Griffith in his experiments with Pneumococcus, was confirmed as DNA by Avery, McLeod and McCarty.
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The transforming principle of Pneumococus as found out by Avery, MacLe...
The Transforming Principle Explained
The experiment conducted by Avery, MacLeod, and McCarty in the early 20th century was pivotal in identifying DNA as the genetic material. Their research focused on the bacterium Streptococcus pneumoniae, which causes pneumonia.
Background of the Experiment
- They built upon Frederick Griffith's earlier work, which demonstrated a "transforming principle" that could change non-virulent bacteria into virulent forms.
Key Findings
- Avery, MacLeod, and McCarty isolated different components of the heat-killed virulent strain.
- They tested the ability of these components (proteins, RNA, and DNA) to transform non-virulent bacteria into virulent ones.
Results
- Only DNA was able to induce transformation in the non-virulent strain, confirming that it was the hereditary material responsible for the change.
- Other components like proteins and RNA did not have this transformative effect.
Conclusion
- The results led to the conclusion that DNA is the "transforming principle."
- This finding laid the groundwork for molecular biology and genetics, establishing DNA as the carrier of genetic information in organisms.
Significance
- This experiment was a cornerstone in understanding the role of DNA in heredity, leading to future discoveries in genetics, biotechnology, and medical research.
In summary, the transforming principle identified by Avery, MacLeod, and McCarty is indeed DNA, which revolutionized our understanding of genetics and cellular biology.
The experiment conducted by Avery, MacLeod, and McCarty in the early 20th century was pivotal in identifying DNA as the genetic material. Their research focused on the bacterium Streptococcus pneumoniae, which causes pneumonia.
Background of the Experiment
- They built upon Frederick Griffith's earlier work, which demonstrated a "transforming principle" that could change non-virulent bacteria into virulent forms.
Key Findings
- Avery, MacLeod, and McCarty isolated different components of the heat-killed virulent strain.
- They tested the ability of these components (proteins, RNA, and DNA) to transform non-virulent bacteria into virulent ones.
Results
- Only DNA was able to induce transformation in the non-virulent strain, confirming that it was the hereditary material responsible for the change.
- Other components like proteins and RNA did not have this transformative effect.
Conclusion
- The results led to the conclusion that DNA is the "transforming principle."
- This finding laid the groundwork for molecular biology and genetics, establishing DNA as the carrier of genetic information in organisms.
Significance
- This experiment was a cornerstone in understanding the role of DNA in heredity, leading to future discoveries in genetics, biotechnology, and medical research.
In summary, the transforming principle identified by Avery, MacLeod, and McCarty is indeed DNA, which revolutionized our understanding of genetics and cellular biology.
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The transforming principle of Pneumococus as found out by Avery, MacLeod and McCarty was[1993]a)mRNAb)DNAc)proteind)polysaccharideCorrect answer is option 'B'. Can you explain this answer?
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