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?
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