DNA Repilcation (enzyemes)

Question 1

Helicase

Answer 1

Breaks hydrogen Bonds (splitting dna into bubble)

Question 2

Primase

Answer 2

Adds RNA primer to origin of replication, and provide 3’’-OH for lagging strand allowing nucleotide to attach

Question 3

DNA Polymerase III (Function and specific location)

Answer 3

Replicates Leading strand by adding nucleotides (attaching to 3’’-OH)

Question 4

DNA polymerase I

Answer 4

Removes RNA primer, replaces the gap with DNA nucleotides

Question 5

Ligase

Answer 5

Seals nucleotides to sugar/phosphate backbone with COVALENT bonds.

Question 6

Purines

Answer 6

A and g

Question 7

Pyrimidines

Answer 7

T c u