Which of the following correctly describes the structure of dna?
group of answer choices

strands of phosphate - nitrogen backbone, with complementary nitrogenous base pairs bound into a double helix

strands of phosphate - sugar backbone, with complementary nitrogenous base pairs bound into a single helix

strands of sugar-nitrogen backbone, with complementary deoxyribose base pairs bound into a double helix

strands of phosphate - sugar backbone, with complementary nitrogenous base pairs bound into a double helix

Explanation:

strands of phosphate sugar backbone with complementary nitrogenous base pairs bound into a double helix

there really is life in the deepest part

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.