DNA structure, phases of DNA replication -- Lecture 5 Flashcards
nucleotides consist of:
5-C sugar
phosphate group
nitrogenous base
the phosphate group is at the ___ end of the nucleotide
5’ end
the ___ is at the 5’ end of the nucleotide
phosphate group
the phosphate group is at the 5’ end of the ___
nucleotide
the OH is at the ___ of the nucleotide
3’
the ___ is at the 3’ end of the nucleotide
OH
the OH is at the 3’ end of the ___
nucleotide
if the OH is at the 2’ end of the nucleotide…
nucleotide is RNA
if the H is at the 2’ end of the nucleotide
nucleotide is DNA
phosphodiester bond formation:
DNA is only synthesized in the ___ direction by DNA polymerase enzymes
5’ to 3’ direction
phosphodiester bond formation:
DNA is only ___ in the 5’ to 3’ direction by DNA polymerase enzymes
synthesized
phosphodiester bond formation:
DNA is only synthesized in the 5’ to 3’ direction by ___
DNA polymerase enzymes
phosphodiester bond formation:
___ is only synthesized in the 5’ to 3’ direction by DNA polymerase enzymes
DNA
DNA structure:
DNA backbone is held together by covalent ___
phosphodiester bonds
DNA structure:
DNA backbone is held together by ___ phosphodiester bonds
covalent
DNA structure:
___ is held together by covalent phosphodiester bonds
DNA backbone
DNA structure:
nitrogenous bases of complimentary DNA strands are held together by ___
H-bonds
DNA structure:
1 complete turn of DNA has ___
10 base pairs
DNA structure:
the ___ has a free phosphate group attached to the 5’ carbon
5’ end
DNA structure:
the 5’ end has a ___ attached to the 5’ carbon
free phosphate group
DNA structure:
the 5’ end has a free phosphate group attached to the ___
5’ carbon
DNA structure:
the ___ has a free hydroxyl (-OH) group at the 3’-carbon
3’ end
DNA structure:
the 3’ end has a ___ at the 3’-carbon
free hydroxyl (-OH) group
DNA structure:
the 3’ end has a free hydroxyl (-OH) group at the ___
3’-carbon
