DNA Replication

Question 1

DNA Helicase

Answer 1

Breaks hydrogen bonds to separate the strands of DNA forming template strands

Question 2

DNA Ligase

Answer 2

Seals the gaps between the Okazaki fragments to create one continuous DNA strand

Question 3

DNA Pol 1

Answer 3

Removes RNA primers and replaces it with newly synthesized DNA

Question 4

DNA Pol 3

Answer 4

Adds nucleotides in 5’-3’ direction (3’-5’ direction of template strand)

Question 5

Primase

Answer 5

Synthesizes RNA primers needed to start replication

Question 6

Leading Strand

Answer 6

Begins in the direction towards the replication fork. Extends from a primer.

Question 7

Lagging strand

Answer 7

Small Okazaki fragments extended away from replication fork. Requires primer to start synthesis

Question 8

Transcription

Answer 8

DNA is transcribed into an RNA copy

Question 9

Translation

Answer 9

MRNA is translated into a polypeptide at the ribosome

Question 10

Prokaryotic gene structure parts

Answer 10

Promoter, coding region, terminator, regulatory sequence