The double-helix structure of DNA was discovered using X-ray crystallography (Rosalind Franklin) and elucidated by Watson and Crick.
Before this discovery, it was previously known that DNA is comprised of
four nucleotide bases: adenine, thymine, guanine, and cytosine. Adenine
always binds to thymine, while guanine always binds to cytosine.
You analyze a double-helix and determine that 17% of the helix is made up
of the nucleotide adenine (A). What percentage of the same helix must be
comprised of the nucleotide guanine (G)?

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

What enzyme is most important for dna replication and why?