5.2 DNA Replication

Question 1

What is DNA replication?

Answer 1

a process where it makes an exact copy of a DNA strand

Question 2

When does DNA replication take place?

Answer 2

before cell division

Question 3

Where does DNA replication take place?

Answer 3

animals/humans- inside the nucleus and bacterial cells- the cytoplasm

Question 4

What are the stages of cell division?

Answer 4

helicase, DNA polymerase,
primase, and ligase

Question 5

What does helicase do?

Answer 5

unzips DNA by breaking hydrogen bonds

Question 6

What does DNA polymerase do?

Answer 6

adds nucleotides to build DNA (A, T, G, and C)

Question 7

What does primase do?

Answer 7

lays down primer so the DNA knows where to start working

Question 8

What does ligase do?

Answer 8

helps glue DNA fragments together

Question 9

What is a leading strand?

Answer 9

a continuous strand

Question 10

What is a lagging strand?

Answer 10

a strand that stops/starts making DNA fragments

Question 11

What is the structure of DNA?

Answer 11

double stranded, goes 5’ to 3’, made up of a phosphate group, a sugar, and nucleotides