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In 1928 Frederick Griffith discovered harmless bacteria can be transformed chemically into harmful bacteria. In 1944 Oswald Avery and his co-workers determined that genes are composed of DNA. In 1952 Rosalind Franklin studied DNA using a technique called X-ray diffraction. In 1953 Watson and Crick developed the double helix model for the structure of DNA. In 2000 the Human Genome Project, (the mapping and sequencing of human DNA), was basically completed. What does this scenario tell us about how the Human Genome Project was even possible?

Question 7 options:

The experiments conducted by scientists on DNA were unrelated and did not contribute to the human genome project.


The knowledge learned by scientists in the 1920s was NOT useful in determining the structure of DNA, since Griffith did not have appropriate scientific technology.


The experiments conducted by earlier scientists were not able to be verified, so they were discounted and not used.


The knowledge learned by scientists over the years helped scientists to determine the precise structure of human genes.

Respuesta :

Answer:The scenario described shows that the knowledge learned by scientists over the years played a crucial role in the development of the Human Genome Project.

In 1928, Frederick Griffith discovered that harmless bacteria could be transformed into harmful bacteria. Although this discovery did not directly contribute to the Human Genome Project, it was an important step in understanding how genetic material can be transferred between organisms.

In 1944, Oswald Avery and his co-workers determined that genes are composed of DNA. This was a significant breakthrough that established DNA as the carrier of genetic information. Understanding the composition of genes was essential for the later advancements in DNA research.

In 1952, Rosalind Franklin studied DNA using a technique called X-ray diffraction. Her work provided valuable insights into the structure of DNA, which paved the way for further discoveries. Franklin's research was crucial in elucidating the physical structure of DNA.

Finally, in 1953, Watson and Crick developed the double helix model for the structure of DNA. This groundbreaking discovery provided a detailed understanding of how DNA is structured and how it carries genetic information. The double helix model was a key milestone in the field of genetics.

The knowledge gained from these earlier experiments and discoveries was instrumental in laying the foundation for the Human Genome Project. By understanding the composition and structure of DNA, scientists were able to develop the techniques and methodologies necessary for mapping and sequencing the human genome.

Therefore, the correct answer is: The knowledge learned by scientists over the years helped scientists to determine the precise structure of human genes.

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