Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
The structure of DNA must allow...?
|
-Replication
-Storage and expression of -information -Recombination -Mutation and repair -Evolution |
|
|
What did Phoebus Levene discover
|
-ribose
-deoxyribose -defined a nucleotide as a phosphate - sugar - base -he did not believe that DNA held the genetic information b.c it was two simple |
|
|
Chargaff’s Rule?
|
-A=T and G=C
-but A, C, G, and T are not equimolar |
|
|
Rosalind Franklin role?
|
-X-ray diffraction images of DNA
- Her data helped created Crick and Watson's structure of DNA |
|
|
Basic structure of DNA?
|
-right handed helix
-major and minor grooves -10 bases per turn -20 A in diameter -The hydrogen bonds form only between A and T or G and C -The phosphodiester backbones are antiparallel |
|
|
The backbones are polymers of nucleotides ?
|
5' --> 3'
|
|
|
Different ways to name nucleotides
|
N: base, deoxynucleoside, nucleotide
A: adenine, deoxyadenosine, deoxyadenosine 5’-triphosphate C: cytosine, deoxycytidine, deoxycytidien 5’-triphosphate G: guanine, deoxyguanosine, deoxyguanosine 5’-triphosphate T: thymine, deoxythymidine, deoxythymidine 5’-triphosphate U: uracil, uridine, uridine 5’-triphosphate |
|
|
What bases are a pyrimidine and purine.
|
|
|
|
What is A, B, and Z DNA?
|
-A-DNA happens in dehydrated environments, has a wider spiral and is shorter
-B-DNA happens in regular conditions, 10 base per turn -Z-DNA can can form when the DNA is all …GCGCGCGC |
