wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

DNA Structure, and Replication

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

What are the DIFFERENCES between purine and pyrimidine? (Select 2)

a)

Purine is more purified than pyrimidine

b)

None, they are identical

c)

Purine consist of two rings fused together, while pyrimidine is only one ring

d)

They both contain lots of nitrogen

2.

Which of the following are PYRIMIDINES?

a)

Adenine

b)

Cytosine

c)

Thymine

d)

Guanine

3.

Which of the following are PURINES? (Select 2)

a)

Adenine

b)

Cytosine

c)

Thymine

d)

Guanine

4.

Who is credited with the discovery of the structure of DNA?

a)

Erica Lanius

b)

James Watson

c)

Kanye West

d)

Rosalind Franklin

5.

What is the structure of DNA?

a)

A Double-Helix

b)

A Scribble

c)

A Flat Ladder

d)

A Zig Zag

6.

What does the enzyme, helicase do?

a)

It causes a nuclear explosion of the DNA

b)

It causes the DNA to "unzip" itself

c)

It causes the base pairs to join

d)

It creates a hydrogen bond

7.

What shape is the replication fork?

a)

X

b)

Æ

c)

Y

d)

Ø

8.

What way does the LAGGING STAND go?

a)

5' to 3'

b)

3' to 5'

c)

The Oregon Trail

d)

4' to 6'

9.

In which phase of the cell cycle does DNA replication occur?

a)

Synthesis

b)

Metaphase

c)

Telophase

d)

Waxing Gibbous

10.

Which of the following is true?

a)

DNA replication is semi conservative

b)

DNA repliction is conservative

c)

DNA replication is progressive

d)

DNA replication is dispersive

11.

What are the rungs of the DNA ladder?

a)

Bonded Base Pairs

b)

Steel

c)

Sugar and Phosphate

d)

Full Nucleotides

12.

What makes up the DNA Backbone?

a)

Bonded Sugar and Phosphate

b)

A Spine

c)

Bonded Base Pairs

d)

A Full Nuceotide

13.

Which of the following does a nucleotide contain? (Select 3)

a)

A Phosphate

b)

A Pentose Sugar

c)

A Base

d)

A Pinch of Salt

14.

What is the purpose of PRIMASE

a)

To "unzip" the DNA

b)

To create RNA Primer

c)

Absolutely nothing at all

d)

To repair the parental strand

15.

What are the building blocks of the DNA backbone?

a)

Base Pairs

b)

Cinderblocks

c)

Nucleotides

d)

The Backbones