Who was Erwin Chargaff and what did he do?
Developed a series of rules based on DNA base composition in organisms
A pairs T and G pairs C
Unwinds, seperates DNA
1/1B Nucleotides
What is DNA?
A polymer of nucleotides, N base, deoxyribose, and P group
How many bonds does A and T form?
2
T/F DNA polymerases cannot initate synthesis of a polynucleotide?
FALSE
What is the bridge between DNA and protein synthesis is called what?
RNA
attaches and initates transcription
What is in Human DNA?
Adenine, Thymine, Guanine, and Cytosine
How many bonds does G and C form?
3
To start a new chain requires a what?
Primer
During transcription, one DNA strand serves as a template to create what?
RNA
James Watson and Francis Crick
the semi-conservative model
A Primer is what?
A short segment of RNA, about 10 nucleotides long
Amino Acids
Initation, Elongation, and Termination
10
What are old and new nucleotides labeled?
New = 14N, Old = 15N
Remove the wrong nucleotide and resumes synthesis.
When was the code for DNA to RNA figured out?
mid-1960s
The presence of a promtometer sequence determines what?
Which strand of the DNA helix is the template