DNA Replication

Question 1

First step in DNA replication

Answer 1

Unwind DNA

Question 2

What enzyme unwinds DNA

Answer 2

helicase

Question 3

Second step of DNA replication

Answer 3

Build the daughter strand

-this adds new complementary bases

Question 4

Where does energy for bonding usually come from?

Answer 4

ATP then AMP

Question 5

Bonding by enzyme, which enzyme?

Answer 5

DNA Polymerase III

Question 6

Leading and lagging strands, mummified by what? And how does the stand grow?

Answer 6

• limits of DNA polymerase III

- can Only build onto 3’end of an existing DNA strand

Question 7

Lagging strand

Answer 7

• Okazai fragments

- joined by ligase

Question 8

Leading strand

Answer 8

Continuous synthesis

Question 9

The central dogma

Answer 9

• Flow of a genetic information in a cell

- Goes DNA, replication, transcription, RNA, translation, protein, trait

Question 10

Transcription

Answer 10

he process by which genetic information represented by a sequence of DNA nucleotides is copied into newly synthesized molecules of RNA, with the DNA serving as a template.

Question 11

RNA polymerase I

Answer 11

• Only transcribes RNA genes

- makes ribosomes

Question 12

RNA Polymerase II

Answer 12

Transcribes genes into mRNA

Question 13

RNA Polymerase III

Answer 13

• Only transcribes tRNA genes

- each has a specific pro meter sequins it recognizes

Question 14

Promoter region

Answer 14

Binding site before beginning of gene

Question 15

Tata box binding site

Answer 15

Bonding binding site for RNA primers and transcription factors

Question 16

Enhancer region

Answer 16

Finding so far upstream of the DNA