8th Science Ch4 Sec1 DNA Look Like?

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What is DNA?

DEOXYRIBONUCLEIC ACID, the material that contains the information that determines inherited characteristics

What is thymine?

one of the four possible bases in a string of DNA - it pairs with adenine

What are nucleotides?

a subunit of DNA that consists of a sugar, a phosphate, and a nitrogenous base

What is cytosine?

the complement of guanine

What LETTERS represent the 4 bases?

A, T, G, C

What did Rosalind Franklin show the shape of with X-ray diffraction?

a spiral

What did the DNA model of Watson and Crick look like?

LONG, TWISTED LADDER

What are the sides of the DNA ladder made of?

sugar and phosphate

What are the "rungs" of the ladder made of?

a pair of bases

Where does the DNA molecule split?

DOWN THE MIDDLE

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