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DNA replication structure and function

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Which enzyme is responsible for unzipping DNA during DNA replication?

a)

Polymerase

b)

Helicase

c)

Ligase

2.

What does it mean to replicate?

a)

copy

b)

paste

c)

cut

d)

text

3.

How is hereditary information carried on a DNA molecule?

a)

the sequence of sugar

b)

the sequence of phosphate

c)

the sequence of bases

d)

the sequence of hydrogen bonds

4.

Which enzyme is responsible for adding new nucleotides to the DNA during DNA replication?

a)

DNA ligase

b)

DNA polymerase

c)

DNA helicase

d)

restriction enzmes

5.

What is the final product of DNA replication?

a)

2 identical copies of DNA

b)

1 molecule DNA

c)

2 different DNA molecules

6.

Both humans and many other organisms can share diseases, like lime disease. Which of the following explains why.

a)

We have similar nucleotide sequences

b)

We all have the same cells

c)

We are all part of a population

7.

Glo Fish contain DNA from sea anemone as well as thier fish DNA. Why are scientists able to combine the DNA sequences of two different organisms

a)

Both animals have cells that can move

b)

All DNA has the same building blocks

c)

Both fish and anemones live underwater so thier cells can be mixed

8.

Which part of the structure is used to determine the traits of an organism?

a)

Phosphate (green)

b)

Sugar (blue)

c)

Base (pink)

9.

In DNA, Adenine binds to

a)

Guanine

b)

Cytosine

c)

Thymine

d)

Adenine

10.

In DNA G binds to

a)

T

b)

C

c)

A

d)

G

11.

Find the complementary strand of DNA for GCG TAT AAA

a)

GCG TAT AAA

b)

AAA TAT GCG

c)

CGC ATA TTT

12.

How are the traits (ex: eye color, tongue rolling, etc.) carried on the DNA strand  

a)

in the sequence of sugars

b)

in the sequence of phosphates

c)

in the sequence of nucleotides

13.

What did Rosalind Franklin's x-ray imaging show about DNA?

a)

The A binds to T

b)

The double helix shape

c)

That it is in the nucleus

14.

Which is easier to break?

a)

the covalent bond on the outside

b)

the hydrogen bond on the inside

c)

it is all easy to break

15.

What is the shape of DNA?

a)

double twist

b)

double trouble

c)

double helix