DNA, RNA, and Protein Synthesis - Part 3 Flashcards
Replication definition:
The process by which a cell copies or duplicated its DNA
During DNA replication, the DNA molecule separates into how many strands…
Two
Complementary strands are produced according to the…
Base pairing rules
The end result of DNA replication is…
Two DNA molecules identical to each other
Each DNA molecule has how many original strands:
One
Each DNA molecule has how many new strands:
One
Helicase definition:
Enzymes in DNA replication that unwind the helix
Helicase enzyme breaks…
The hydrogen bonds between complementary base pairs
The helicase “unzips” the DNA molecule, forming…
Two replication forks
After the helicase does its thing, the two parental strands are separated making them available as…
Template strands
DNA polymerase…
Add the new nucleotides to the existing chain
DNA polymerase proofread…
Each new DNA strand to ensure an exact copy
If a mistake if found DNA polymerase…
Removes the nucleotide
Repairing DNA damage step one:
Damaged section of DNA is cut out
Repairing DNA damage step two:
The gap is filled with nucleotides by DNA polymerase
