BASE PAIRING
What letters pair with which ?
A's with T's
C's with G's
What two molecules make up the backbone?
Sugar and phosphate
How do we know when something is considered an enzyme?
Suffix : "-ase"
Where does replication occur in the cell cycle?
BE SPECIFIC
S-phase of interphase
Who took photograph 51?
Rosalind Franklin
What type of bonds are between these bases?
Hydrogen
What type of bonds hold the backbone together?
Covalent
Are the enzymes involved with DNA structure or DNA replication?
DNA replication
The ___________ strand follows the replication fork/helicase.
Leading Strand
What two male scientists finalized the structure of DNA?
James Watson & Francis Crick
How many bonds between A's and T's and how many are between C's and G's?
2 between A's and T's
3 Between C's and G's
The strands of DNA run in what direction in relation to the other?
Anti-parallel
What enzyme is responsible for breaking the bonds between the bases?
Helicase
The ____________ strand moves in the opposite direction of the replication fork/helicase.
Lagging strand
Who came up with the rule that A's = T's and C's = G's??
Erwin Chargaff
Which two bases are purines and which two are pyrimidines?
Purines -adenine and guanine
Pyrimidines- cytosine and thymine
The five prime end is the _____________.
Phosphate
What enzyme is responsible for attaching free floating nucleotides to the growing DNA strand?
DNA polymerase
What are the segments of DNA that is produced by the lagging strand?
OKazaki fragments
Which scientist did not receive a nobel prize for their work?
Rosalind Franklin
Which two are one ring structures and which two are single ring structures?
Purines are two-ring
Pyrimidines are one-ring
The three prime end is the ___________.
Sugar
What Direction does the DNA polymerase build the new strand of DNA?
5' --> 3' direction
What is the end product of DNA replication?
This Japanese Scientist discovered a part of DNA and named them after himself. What did he name after himself?
Okazaki Fragments