DNA, RNA, and Protein Synthesis - Part 3 Flashcards Preview

Biology 2015-2016 > DNA, RNA, and Protein Synthesis - Part 3 > Flashcards

Flashcards in DNA, RNA, and Protein Synthesis - Part 3 Deck (16):
1

Replication definition:

The process by which a cell copies or duplicated its DNA

2

During DNA replication, the DNA molecule separates into how many strands...

Two

3

Complementary strands are produced according to the...

Base pairing rules

4

The end result of DNA replication is...

Two DNA molecules identical to each other

5

Each DNA molecule has how many original strands:

One

6

Each DNA molecule has how many new strands:

One

7

Helicase definition:

Enzymes in DNA replication that unwind the helix

8

Helicase enzyme breaks...

The hydrogen bonds between complementary base pairs

9

The helicase "unzips" the DNA molecule, forming...

Two replication forks

10

After the helicase does its thing, the two parental strands are separated making them available as...

Template strands

11

DNA polymerase...

Add the new nucleotides to the existing chain

12

DNA polymerase proofread...

Each new DNA strand to ensure an exact copy

13

If a mistake if found DNA polymerase...

Removes the nucleotide

14

Repairing DNA damage step one:

Damaged section of DNA is cut out

15

Repairing DNA damage step two:

The gap is filled with nucleotides by DNA polymerase

16

Repairing DNA damage step three:

Ligases (other enzymes) seal the free ends and make the new strand complete