Where in a cell is DNA found?
nucleus
What do proteins make?
amino acids
what pair forms a triple bond
C and G
who produced the x-ray image?
Franklin
What does DNA do before cell division?
Replicate
what are the 4 nucleotides?
A, T, C, G
what pairs with a purine
pyrimidine
who came up with double helix structure?
Watson and Crick
What is coiled DNA found in the nucleus called?
chromosome
what are the two groups of nucleotide base pairs?
purine
pyrimidine
what structure has a double ring?
purine
Who noticed that nucleotides were different between species?
Chargraff
What is a segment of DNA?
A gene
Where are the phosphates and sugars on a DNA molecule?
handrails of ladder
What shape is DNA referred to as?
double helix
T=A
G=C
is what rule?
Chargraff
what are chromosomes made of?
proteins and nucleic acids
What holds the base pairs together?
hydrogen bonds
what is the term used to describe that one strand of DNA is 5'-3' and the other is 3'-5'?
antiparallel
If you had 16% of G how much percent is A?
34%