1859 - Natural Selection - Charles Darwin wrote “On the Origin of Species by Means of Natural Selection, or the Preservation of Favored Races in the Struggle for Life
1865 - Heredity Transmitted in Units - Gregor Mendel’s experiments on peas demonstrate that heredity is transmitted in discrete units. The understanding that genes remain distinct entities even if the characteristics of parents appear to blend in their children explains how natural selection could work and provides support for Darwin’s proposal.
1869 - DNA Isolated - Frederick Miescher isolates DNA from cells for the first time and calls it “nuclein
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Answer:
The one discovery that helped scientist gain a better understanding of human genetics, and all the ramifications that came with it, was, the discovery of the structure of DNA molecules by James Watson and Francis Crick.
Explanation:
This discovery, one of the greatest achievments of scientists, especially in the 20th century, opened up the doorway for a lot of new discoveries and scientific development, especially in the field of genetics. This discovery, which took place in 1953, and which was a result of the research carried out by scientists, James Watson and Francis Crick, became a milestone in history, and gave birth to other scientific fields, such as molecular biology. The discovery simply was that these two scientists were the first ones to be able to unravel, and portray, the true nature of the human DNA as a double helix. This has allowed scientists to understand the very basics of human life.
