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Double Helix: How an Image Sparked the Discovery of the Secret of Life
Double Helix: How an Image Sparked the Discovery of the Secret of Life
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Double Helix: How an Image Sparked the Discovery of the Secret of Life

To the untrained eye, Photo 51 was simply a grainy black and white image of dark marks scattered in a rough cross shape. But to the eye of a trained scientist, it was a clear portrait of a DNA fiber taken with X-rays. And to young scientists James Watson and Francis Crick, it confirmed their guess of deoxyribonucleic acid's structure. In 1953 the pair was racing toward solving the mystery of DNA's structure before other scientists could beat them to it. They and others believed that finding the simple structure of the DNA molecule would answer a great mystery, how do organisms live, grow, develop, and survive, generation after generation? Photo 51 and subsequent models based on the photo would prove to be the key to unlocking the secret of life.

 
ISBN978-0-7565-5646-4
6-Pack ISBN978-0-7565-5677-8
GRLZ
Lexile Level1060L
GenreInformational
Text TypeNarrative Nonfiction
Text SubtypeCause & Effect
SubjectWorld History
Page Count64
Copyright2018
SeriesCaptured Science History
Paperback
Price
$8.95
 


6-Pack
Paperback
Price
$54.70

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Danielle Smith-Llera

Danielle Smith-Llera

Danielle Smith-Llera’s former life as a teacher led her to write books for young people. She has taught literature, writing, history, and visual arts to students ranging from elementary school to college. Danielle studied English and Visual Arts at Harvard University and exhibits her artwork internationally. As the spouse of a diplomat, she and her family have lived in Washington D.C., New Delhi, India and Kingston, Jamaica.

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