Day 161 of 365
June 10
B
Biology The Structure of DNA
DNA's double helix structure was discovered in 1953 by Watson, Crick, and Franklin. Each human cell contains about 6 feet of DNA packed into a nucleus smaller than a speck of dust. If all your DNA were uncoiled and laid end to end, it would stretch from Earth to the Sun and back about 600 times.
Did you know?
Humans share about 60% of their DNA with bananas!
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