DNA Replication

Question 1

What are 5 things needed for DNA replication?

Answer 1

1. Phosphate
2. Pentose sugar
3. Nitrogenous bases
4. DNA helices
5. DNA polymerase

Question 2

What are the 4 nitrogenous bases

Answer 2

Guanine
Cytosine
Adenine
Thymine

Question 3

What is the first step of dna replication?

Answer 3

DNA begins as an anti-parallel double helical structure

Question 4

What is the second process of DNA replication?

Answer 4

DNA helicase unzips and unzips the DNA strand by breaking hydrogen bonds, forming a replication fork and exposing nitrogenous bases

Question 5

What is the third process of DNA replication?

Answer 5

DNA polymerase attaches to the primer and adds complementary nucleotides to each original DNa strand creating two strand alongside the old ones

Question 6

What is the third process of DNA replication?

Answer 6

DNA polymerase attaches to the primer and adds complementary nucleotides to each original DNa strand creating two strand alongside the old ones

Question 7

What is the 4th step of DNA replication?

Answer 7

Replication occurs continuously on the leading strand, while the lagging strand is synthesised in short fragments, which are later joined by DNA ligaments

Question 8

What is the 5th step of DNA replication?

Answer 8

Once replication is complete, DNA polymerase removes the RNA primers, replacing them with DNA and the two new DNA molecules coil into double helices