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Components of DNA

Total questions: 12

Worksheet time: 12mins

Name
Class
Date
1.

The current model of DNA was proposed in

a)

1953

b)

1776

c)

1999

d)

1965

2.

The completed DNA puzzle/model resembles a

a)

rubber band

b)

ladder

c)

egg

d)

spiral

3.

Which of the following is NOT a component of DNA?

a)

Deoxyribose

b)

Phosphate

c)

Carbon Dioxide

d)

Nitrogen Base

4.

You can find DNA ONLY in...

a)

animals

b)

all living cells

c)

plants

d)

bacteria

5.

What is the monomer for DNA?

a)

glucose or monosaccharides

b)

glycerol and fatty acids

c)

amino acids

d)

Nucleotides

6.

A nucleotide is made of....


(HINT: CLICK ALL OF THE RIGHT ANSWERS)

a)

phosphate group

b)

five carbon (pentose) sugar

c)

Nitrogenous base

d)

amino acid

7.

What is the backbone of DNA made of?

a)

glucose and sucrose

b)

amino acids and lipids

c)

deoxyribose (sugar) and phosphate

d)

carbon and helium

8.

What are the 4 nitrogenous bases?

a)

U T C G

b)

A T C G

c)

A C G R

d)

A T C P

9.

Adenine always binds with

a)

adenine

b)

thymine

c)

cytocine

d)

guanine

10.

Cytosine always binds with

a)

adenine

b)

thymine

c)

cytocine

d)

guanine

11.

The entire structure of DNA looks like a ladder twisted into a spiral. This shape is known as a

a)

double helix

b)

spun ladder

c)

spiralled

d)

DNA

12.

What was one limitation of the DNA puzzle/model you build?

a)

it was 2D and did not show the spiral structure of DNA

b)

it showed all of the parts

c)

all of the components were labelled

d)

it showed us the colors of DNA