DNA Replication

Question 1

It is an enzyme that unzips the DNA strands by breaking the hydrogen bonds between the complementary bases

It helps create a REPLICATION FORK

Answer 1

Helicase

Question 2

It is an enzyme that breaks, swivels and rejoins the DNA ahead of the replication fork, relieving the strain caused by unwinding

Answer 2

Topoisomerase

Question 3

It is an enzyme that synthesizes RNA primers, using the parental DNA as a template

It is about 5-10 nucleotides longs

Answer 3

Primase

Question 4

It is the main enzyme in the DNA Replication process

It synthesizes new necleotides that are complementary to the strands

Answer 4

DNA Polymerase III

Question 5

It is an enzyme that removes primer from the lagging strand and also fills the gap

Answer 5

DNA Polymerase I

Question 6

It is an enzyme that catalyzes the formation of a phosphodiester bond between nucleotides on one strand of a double-stranded DNA molecule

Answer 6

Ligase

Question 7

Steps of DNA replication

Answer 7

• Separation - Helicase
• Binding - Primase
• Complementation - Polymerase III
• Formation - Polymerase I
• Closing - Ligase